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Classification 1

There are 50 questions. The pass mark is 90%. Best of Luck

1 / 50

1. which of the following is not correc about plant and animals

2 / 50

2. Which of the following is not used for classification of the types of plant

3 / 50

3. The process where living organsims gradually change into a new form in response to change in the evironment is called

4 / 50

4. Which of the following helps transport of nutrients inside a cell or cytoplasm

5 / 50

5. Which of the following is not correct about the system of nameing lining organisms

6 / 50

6. Which of the following is not correct about bacteria

7 / 50

7. which of the following exists at tissue level

8 / 50

8. Which of the followign is correct

9 / 50

9. What is excretion

10 / 50

10. Which of the following is not correct about a mucor

11 / 50

11. The ability of organism to immediately change to the environment for survival is called

12 / 50

12. The process of classifying organisms into groups is called

13 / 50

13. When the food we eat becomes part of the body it is called

14 / 50

14. The slimy covering of spirogyra is

15 / 50

15. Which of the following is usually absent in animal cell

16 / 50

16. Each thread of a mucor is called

17 / 50

17. which of the following is not correct about kingdom Plantae

18 / 50

18. which process is involved in the building up of body materials

19 / 50

19. Which of the following is not correct

20 / 50

20. which of the following is not used for movement

21 / 50

21. Which of the following is not a similarity between living and nonliving things

22 / 50

22. Which of the following is the most abundant plant

23 / 50

23. Mammals that lay eggs are called

24 / 50

24. Which of the following is not correct about photosynthesis

25 / 50

25. which of the following is not correct about kingdom Plantae

26 / 50

26. which of the following is not a subgroup in the plant kingdom

27 / 50

27. which of the following is the most abundant animal

28 / 50

28. Which of the following is a green filamentous algae

29 / 50

29. Which of the following responds to light stimulus

30 / 50

30. Organisms that have 48 chromosomes are grouped together in family called

31 / 50

31. Which of the following has no roots, stem or leaves

32 / 50

32. Which of the following is not a single celled organism

33 / 50

33. which of the following is the process that releases chemical energy from food

34 / 50

34. What organism was being studied when penicillin antibiotic was discovered

35 / 50

35. Which of the following definition is not correct

36 / 50

36. which of the following is absent in plant cell

37 / 50

37. which of the following initiates the process of cell division in animals

38 / 50

38. Which of the following is not a characteristic of mammals

39 / 50

39. Which of the following is not correct

40 / 50

40. Which of the following is not correct about animals

41 / 50

41. which of the following is the ability the following is the ability that allows living organisms to respond to internal stimulus

42 / 50

42. Who discovered penicillin antibiotics

43 / 50

43. Which of the following is not a property of living organisms

44 / 50

44. Which of the following is not correct about the system of nameing lining organisms

45 / 50

45. What is nutrition

46 / 50

46. The part of the mammalian brain that is more developed than other animal brain is the

47 / 50

47. what organelle is used for storage of starch

48 / 50

48. which of the following does not refer to the process by which content of the cytoplasm move from one organelle to the other

49 / 50

49. which of the following is the link between living and non-living things

50 / 50

50. Which of the following is not correct about plants

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Classification 2

There are 50 questions. The pass mark is 90%. Best of Luck

1 / 50

1. In Spirogyra, the pyrenoid

2 / 50

2. Which of the following is not true about blue-Green Algae or cyanobacteria

3 / 50

3. Which of the following is NOT true of Mucor?

4 / 50

4. which of the following is an example of perennial crop

5 / 50

5. which of the following is not true about the method of classifying organisms

6 / 50

6. the sting cells of coelenterates is

7 / 50

7. Which of the following is not correct about the standard naming system used by biologists to name organisms

8 / 50

8. The movement of part of a plant in response to an external stimulus of no particular direction is

9 / 50

9. A group of similar cells performing the same function is

10 / 50

10. Which of the following organisms in the protista kingdom does not possess cilia or flagella

11 / 50

11. Which of these animals is radially symmetrical?

12 / 50

12. Which of the following Kingdom is made up of single cell but with a definite nucleus and specialized structures called organelles

13 / 50

13. which of the following is not true about perennial crops

14 / 50

14. Which of the following is not correct about a virus

15 / 50

15. What property possessed by organims protophyta phyllum of the kingdom protista makes them able to make their food

16 / 50

16. which of the following si not a shape of bacteria

17 / 50

17. Which of the following is seed-bearing?

18 / 50

18. What is the standard naming convention used by biologists to name organisms

19 / 50

19. which of the following is not a characteristics of thallophytes

20 / 50

20. which of the following is not correct about protists or protozoa

21 / 50

21. In a community, bacteria and fungi are referred to as:

22 / 50

22. Viruses are regarded as non-living because they

23 / 50

23. In fish, the sense organs that detect movements in the water are located within the:

24 / 50

24. A food substance that produces red coloration with Sudan III contains

25 / 50

25. which of the following is not correct about coelenterates

26 / 50

26. Which of the following moves with the aid of cilia

27 / 50

27. Which of the following elements are necessary for the formation of chlorophyll in a plant?

28 / 50

28. Green plants are important in the ecosystem because they are:

29 / 50

29. Oxygen liberated during photosynthesis has been demonstrated to come from:

30 / 50

30. Which of the following is not a means of movement

31 / 50

31. which of the following is not an example of coelenterate

32 / 50

32. which of the following is not correct about biennial crops

33 / 50

33. Which of the following is not correct about bacteria

34 / 50

34. kingdom is made of simple cell organisms with no definite or true nucleus

35 / 50

35. Which of the following is the appropriate hierarchy of living organisms

36 / 50

36. which of the following is not a way of classifying crops according to their life cycle

37 / 50

37. Which of the following is the correct representation of the five (5) Kingdoms into which plants and animals may be classified

38 / 50

38. which of the following is not correct about coelenterates

39 / 50

39. Partially digested food ready to leave the stomach is referred to as:

40 / 50

40. which of the following is not an algae

41 / 50

41. Euglena is considered an autotrophic organism because it

42 / 50

42. Which of the following is not in the kingdom monera

43 / 50

43. Organisms within which level can mate and procreate

44 / 50

44. which of the following is not an algae

45 / 50

45. Bryophytes differ from flowering plants because they:

46 / 50

46. crops that complete their lifecycle in two years

47 / 50

47. What is the whiplike structure possessed by some motile bacteria

48 / 50

48. Which of the following is NOT true of Spirogyra?

49 / 50

49. which of the following is not a fungus

50 / 50

50. In lower plants like mosses, the structure that performs the functions of roots in higher plants is called

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Classification 3

There are 50 questions. The pass mark is 90%. Best of Luck

1 / 50

1. Which of the following correctly arranges the order of increasing complexity in the animal kingdom

2 / 50

2. Which of the following phylum (division) may have vertebral columns

3 / 50

3. Which of the following is not a class under Phylum arthropoda

4 / 50

4. Which of the phylum (division ) of the plant kingdom are known as vascular plants

5 / 50

5. Which of the following phylum produces external hard shell body covering

6 / 50

6. Which of the following is not correct about the characteristics of the animal kingdom

7 / 50

7. Which of the following is not correct about sponges

8 / 50

8. Which of the following is not an example of phylum Annelida

9 / 50

9. Which of the following is not a member of the phylum Mollusca

10 / 50

10. Which of the following is not correct about the description of animal body

11 / 50

11. Which of the following is the largest phylum in the animal kingdom

12 / 50

12. How many kingdoms of living organisms are currently recognized by most biologists

13 / 50

13. Which of the following is not correct about the phyllum Thallophyta of the plant kingdom

14 / 50

14. Which of the following helps the fish to detect changes in water pressure

15 / 50

15. Which of the following body feature allows organisms to grow bigger

16 / 50

16. Which of the following is not correct about hydra

17 / 50

17. Which of the following is not a feature of phylum Arthropoda

18 / 50

18. Which of the following is not a property of the plant kingdom

19 / 50

19. Which of the following is not correct about platyhelminthes phylum

20 / 50

20. Which of the following is not correct about the features of an insect

21 / 50

21. Which of the following is not correct about sponges

22 / 50

22. Which of the following is not an example of nematode

23 / 50

23. Which of the following is not correct about gymnosperms and angiosperms

24 / 50

24. Which of the following is not a member of the thallophyta (algae) phylum of the plant kingdom

25 / 50

25. Which of the following moves with the aid of cilia

26 / 50

26. Which of the following is not correct about the kingdom Fungi

27 / 50

27. Which of the following has the largest number of body segments in the phylum Arthopoda

28 / 50

28. Which of the following is not a member of the coelenterate phylum

29 / 50

29. Which of the following features allow a fish to regulate its density to be able to remain still at any depth underwater

30 / 50

30. What properties present in plants makes them able to produce their own food in contrast to animals

31 / 50

31. Which of the following is not feature of Phylum Mollusca

32 / 50

32. Which of the following is not a class under the phylum Chordata

33 / 50

33. Which of the following is not correct about the classes under the phylum Arthropoda

34 / 50

34. Which of the following is not an example of a round worm (phylum Nematoda)

35 / 50

35. Which of the following is not a vegetative part of a flowering plant

36 / 50

36. Which of the following organism is useful in making wine, bread, and antibiotics

37 / 50

37. Which of the following is not correct about hydra

38 / 50

38. Which of the following is not a function of the stem of a flowering plant

39 / 50

39. Which of the following is not correct about hydra

40 / 50

40. Which of the following is not correct about sponges of the phylum porifera

41 / 50

41. Which of the following phylum in the animal kingdom have spiny skin

42 / 50

42. Which of the following is the main photosynthesis organ of a flowering plant

43 / 50

43. Which of the following is not correct about hydra

44 / 50

44. Which of the following is not a class under Phylum arthropoda

45 / 50

45. Which of the following is not correct about nematodes

46 / 50

46. Which of the following is not a phyllum (division ) under the Kingdom Plantae

47 / 50

47. Which of the following is not correct about the phylum pteridophyte of the plant kingdom

48 / 50

48. Which of the following is not part of the shoot system of a plant

49 / 50

49. Which of the following is not a feature of phylum Annelida

50 / 50

50. Which of the following is not a characteristic of the spermatophyte phylum of the plant kingdom

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Nutrition

This is a written test , fill in the blank space type. Insert ONE WORD OR ONE TERM ONLY  in each of the spaces provided. The pass mark is 90%. Best of Luck

1 / 3

1. nut1-In biology,  refers to the process by which living organisms obtain and utilize the substances in the environment for metabolism and maintenance of  life

2 / 3

2. nut2-The two main types of feeding in living organisms is – nutrition and – – Nutrition

3 / 3

3. nut4-Organisms (like plants) synthesize their own food using inorganic substances and energy from sunlight in a process called or in a chemical reactions  called

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Created by Agodirin

Nutrition 2

This is fill in the blank test.  Supply only ONE WORD or ONE TERM in each of the blank spaces .  The pass mark is 90%. Best of Luck

1 / 2

1. nut6-The four main process that occur during nutrition are :  , ,  , and 

2 / 2

2. nut3-Organism that consume plants are called – . Organisms that consume other animals are called- and Organisms that consume plant and animals are called

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Nutrition 3

This is fill in the blank test.  Supply only ONE WORD or ONE TERM in each of the blank spaces .  The pass mark is 90%. Best of Luck

1 / 2

1. nut7- List 4 types of nutrition in which organism ingest organic material and do not manufacture their own food:

2 / 2

2. nut5- Nutrition or utilization of food is important for several vital processes in the body of the living organism. List any 5 of the vital processes that nutrition is important for:           .  Use only one word or one term for each of the process

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Created by Agodirin

Nutrition 4

This is fill in the blank test.  Supply only ONE WORD or ONE TERM in each of the blank spaces .  The pass mark is 90%. Best of Luck

1 / 1

1. nut8-Please enter one word for in each of the blank spaces to describe the process of photo synthesis:  In the of leaves, absorbs sunlight. This energy is used to split molecules into and . The is released into the air, while the ions and electrons are used in the light-dependent reactions to produce and NADPH. These energy-rich molecules then power the cycle or reaction, where carbon dioxide is fixed and combined with hydrogen to produce glucose (sugar)

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Nutrition 5

This is fill in the blank test.  Supply only ONE WORD or ONE TERM in each of the blank spaces .  The pass mark is 90%. Best of Luck

1 / 1

1. nut9-Insert one word to complete each of the steps in during the process of photosynthesis

In the   reaction

In the of  leaves

Energizing of – by sunlight

causes of water leading to

Formation of oxygen and hydrogen

In the   reaction reduction of carbon dioxide occurs leading to the formation of sugar

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Created by Agodirin

Nutrition 6

This is fill in the blank test.  Supply only ONE WORD or ONE TERM in each of the blank spaces .  The pass mark is 90%. Best of Luck

1 / 1

1. nut10- The type of nutrition in which organism feed on dead and decay organic material is called nutrition and the organisms are called .  The type of nutrition in which one organism depends on  another for feeding in which one benefits and the other is harmed is called nutrition .  The organism that is harmed is the and the organism that benefits is the

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Digestive Tract of Human

Picture test

1 / 1

1. nut-picture- 1  Fill in the blank spaces:

What is A . What is B .

What is C . What is D .

The structure  E is  -bladder.

What is F .

The structure G is   duct.

what is H .

What is M .

What is K

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4
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Digestive Tract of Earthworm

1 / 1

1. nut-picture-2: Fill in the blank spaces

What is A 

What is B

What is C .

What is D

What is E

What is F

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Digestive Tract of Cockroach

1 / 1

1. Nut-picture-3

The structure labeled is A  gland

What is B

What is C

What is D

The structure labelled  E is mesenteric

What is F

The structure labeled G is tubules

What is H

What is I

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2
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Biology: Digestive Tract of Bird

1 / 1

1. Nut-picture 4  Digestive Tract of Bird

What is A

What is B

What is C

The structure labelled D  is  duct

What is E

The structure labelled F is duct

The structure labelled G is bladder

What is H 

The structure labelled  I is small

What is J

What is K

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Biology:Transportation

1 / 50

1. transport12_what are the two components of blood in humans

2 / 50

2. transport18_which of the following is not a function of white blood cells

3 / 50

3. transport31_which of the following carries deoxygenated blood

4 / 50

4. transport28_the vessels that carry blood away from the heart are called

5 / 50

5. transport14_which of the following is not found in blood

6 / 50

6. transport41_which of the following is not correct about guttation

7 / 50

7. transport6_which of the following is means of transportation of nutrients and wastes in unicellular organisms

8 / 50

8. transport22_The threadlike structure that forms the mesh work during blood clotting is

9 / 50

9. transport19_Which of the following is not involved in the prevention of blood loss (formation of clots)

10 / 50

10. transport38_The greatest loss of water from the surface of leaves or plant shoot occurs through the

11 / 50

11. transport20_Which of the following is not formed in the bone marrow

12 / 50

12. transport1_Which of the following is not a function of the transportation system

13 / 50

13. transport15_which of the following is not a function of plasma

14 / 50

14. transport35_which of the following is responsible for downward transportation of nutrients in plants

15 / 50

15. transport23_The inability of blood to clot easily in some human is called

16 / 50

16. transport42_Which of the following is not translocated in plant

17 / 50

17. transport11_which of the following is responsible for pumping the blood in human

18 / 50

18. transport26_relaxation of the heart muscle to allow refilling before pumping the blood out is called

19 / 50

19. transport7_Which of the following use blood as means of transportation of nutrients and wastes

20 / 50

20. transport47_The structure of closed circulatory system is from the heart and back to the heart is

21 / 50

21. transport50_The part of the heart that receives the blood returning from the vein is

22 / 50

22. transport45_The structures in blood vessels that allow blood to flow in one direction only are

23 / 50

23. transport48_In the closed circulation found in vertebrates the point whe re exchange of nutrients and waste occurs between the cells and the circulatory system is the

24 / 50

24. transport40_Which of the following does not affect the rate of transpiration in plants

25 / 50

25. transport39_The instrument used to measure transpiration from plant surface is

26 / 50

26. transport34_Which of the following is responsible for upward transportation of nutrients in plants

27 / 50

27. transport46_Which of the following does not have open circulation

28 / 50

28. transport16_the component of red cells that transports oxygen is

29 / 50

29. transport9_Which of the followin g uses cell sap and latex as means of transporation of nutrients and wastes

30 / 50

30. transport32_Which of the following is not related transportation of nutrients in unicellular organism

31 / 50

31. transport44_what are the two types of circulatory system present in living organisms

32 / 50

32. transport49_What are the two types of closed circulatory systems found in vertebrates

33 / 50

33. transport10_Which of the following is not a part of the transportation system in human

34 / 50

34. transport24_The heart is located in the

35 / 50

35. transport27_the beating of the heart is timed by the

36 / 50

36. transport5_the mode of nutrition in unicellular organisms is

37 / 50

37. transport3_which of the following is not a medium for transportation of nutrients in living orgaisms

38 / 50

38. transport17_which of the following are functions of the red blood cell

39 / 50

39. transport4_the mode of excretion in unicellular organism is

40 / 50

40. transport8_Which of the following use blood as means of transportation of nutrients and wastes

41 / 50

41. transport2_which of the following is not a medium for transportation of nutrients in living organisms

42 / 50

42. transport33_the nutrient and hormone conducting structure in plant is

43 / 50

43. transport25_contraction of the heart to pump blood to other parts of the body is called

44 / 50

44. transport13_the fluid portion of blood is called

45 / 50

45. transport30_which of the following carreis oxygenated blood

46 / 50

46. transport36_During the upward transportation of fluid in the plant. The force responsible for pushing xylem sap or fluid upwards along the shoot system is

47 / 50

47. transport29_the vessels that carry blood to the heart are called

48 / 50

48. transport37_loss of water vapour from the surface of the shoot system of plant is

49 / 50

49. transport21_the process of engulfing and digesting bacteria by white cell is called

50 / 50

50. transport43_in open circulation the heart pumps blood inot a blood vessel which branches to terminate in spaces called

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Biology: Transportation 2

1 / 50

1. transport89_the xylem is made up of long spindle shaped cells called

2 / 50

2. transport90_the phloem is made of of companion cells and

3 / 50

3. transport64_which of the following is not function of the blood

4 / 50

4. transport97_Which of the following is NOT a function of the blood?

5 / 50

5. transport53_oxygenated blood flows through what part of the heart in mammals

6 / 50

6. transport100_In plants, the process by which water is lost through the stomata is called:

7 / 50

7. transport58_which of the following is not a type of white blood cell

8 / 50

8. transport84_which of the following is not correct about the heart beat

9 / 50

9. transport99_The main function of the lymphatic system in mammals is to:

10 / 50

10. transport61_how is carbondioxide excreted from human body

11 / 50

11. transport66_When a blood vessel is broken or cut, which of the following helps to prevent excessive blood loss

12 / 50

12. transport60_which of the following blood cells has the shortest lifespan

13 / 50

13. transport83_which of the followng is not true about the blood flow in the heart

14 / 50

14. transport95_The main function of the phloem in plants is to:

15 / 50

15. transport67_which of the following produces antibodies

16 / 50

16. transport77_During exercise the heart beats

17 / 50

17. transport78_the vein and artery supplying the heart muscles are

18 / 50

18. transport71_The blood vessel which carries blood from the alimentary canal to the liver is the?

19 / 50

19. transport91_Which of the following is not correct about the absorbtion of water from the root of plants

20 / 50

20. transport92_The absorbtion of minerals in the root hair of plant is by

21 / 50

21. transport82_the valve betwee the left auricle and left ventricle is called the

22 / 50

22. transport69_Circulation of blood to all parts of the body except the lungs is through?

23 / 50

23. transport86_the process of transportation in algae is

24 / 50

24. transport73_Lack of nucleus is a feature in?

25 / 50

25. transport63_in what form is waste product of protein excreted from the body

26 / 50

26. transport68_The primary structure responsible for pumping blood for circulation through the mammalian circulatory systems is the?

27 / 50

27. transport57_Which of the following is not a blood cell

28 / 50

28. transport75_Which of the following is not correct about the human heart

29 / 50

29. transport93_Which of the following is a function of the xylem in plants?

30 / 50

30. transport81_the valve betwee the right auricle and right ventricle is called the

31 / 50

31. transport96_Which of the following is a characteristic of arteries?

32 / 50

32. transport72_Blood circulation in a mammal is said to be double because? 

33 / 50

33. transport85_Which of the following is not correct

34 / 50

34. transport87_the process of transportation of nutrients in simple nonvascular plants is

35 / 50

35. transport76_when at rest the adult heart pumps at howmany beats per minute

36 / 50

36. transport98_Which of the following is a component of the vascular bundle in plants?

37 / 50

37. transport51_in mammals the blood that passes from the heart to the lungs and back to the heart is

38 / 50

38. transport80_the veins that carry blood to the heart are called

39 / 50

39. transport59_Which of the following blood cells has the longest life span

40 / 50

40. transport74_The correct pathway for blood flow from the heart to the tissues of mammals is?

41 / 50

41. transport62_how is carbondioxide excreted from human body

42 / 50

42. transport56_which of the following is not part of plasma

43 / 50

43. transport55_which of the following is not part of plasma

44 / 50

44. transport94_In mammals, the pulmonary artery carries:

45 / 50

45. transport70_The blood component that has the greatest affinity for oxygen is the?

46 / 50

46. transport52_in mammals the blood that passes from the heart to the other parts of the body and back to the heart is

47 / 50

47. transport65_Which of the following is not a function of the blood

48 / 50

48. transport88_the two main vascular tissue in plants is

49 / 50

49. transport54_deoxygenated blood flow through what part fo the heart in mammals

50 / 50

50. transport79_the vein and artery supplying blood to the lungs are

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Biology: Sense Organs

1 / 50

1. sense37_which of the following is not correct

2 / 50

2. sense46_which of he following amplify the sound fibrations that enter the ear

3 / 50

3. sense1_Which of the following is not a sense organ

4 / 50

4. sense3_which of the following sense organs is for balance and joint position sense in humans

5 / 50

5. sense23_the eye is made up of three layers. Which of the following is not one of them

6 / 50

6. sense35_which of the following animal have round pupils

7 / 50

7. sense22_the eye has 6 muscles, which of the following are not part of the muscles

8 / 50

8. sense32_which of the following is not correct about the blind spot in the eye

9 / 50

9. sense42_the outer ear is separated from the middle ear by the

10 / 50

10. sense40_the part of the ear from outside in is

11 / 50

11. sense47_which of the following structure in the ear is not involved with hearing

12 / 50

12. sense25_which of the following is the fluid in the posterior chamber of the eye

13 / 50

13. sense33_which of the following is not correct

14 / 50

14. sense17_Which of the following is not a protection for the eye

15 / 50

15. sense2_how many sense organs do human have

16 / 50

16. sense12_the two types of photo receptors for vision in the eyes are

17 / 50

17. sense14_The receptors that help us to see at night and in the dark are

18 / 50

18. sense39_all the following are parts of the ear except

19 / 50

19. sense38_the ear has how many parts

20 / 50

20. sense41_the three bones of the middle hear help to amplify sound waves which comes from the eardrum, which of the following is not one of the three bones of the middle ear

21 / 50

21. sense29_the part of the eye that carries light information from the eye to the brain

22 / 50

22. sense26_The structure of the eye that directs light to the retina is the

23 / 50

23. sense20_which of the following produces tears

24 / 50

24. sense6_Which of the following receptors in the skin perceives pain

25 / 50

25. sense48_which of the following converts sound waves entering the ear into electrical waves for transmission to the brain

26 / 50

26. sense28_the part of the eye that regulates the amount of light entering the eye is the

27 / 50

27. sense36_which of the following animal have slit pupils

28 / 50

28. sense44_which of the following is the eardrum

29 / 50

29. sense30_the structure that regulates the diameter of the pupil to allow more or less light to pass through the pupil is

30 / 50

30. sense4_Which sense organs helps to detect warm or hot object

31 / 50

31. sense24_which of the following is the fluid in the anterior chamber of the eye

32 / 50

32. sense19_which of the following does not prevent or removes dust from the eye

33 / 50

33. sense49_the nerve that is involved with vision

34 / 50

34. sense5_which of the following receptors is absent in the skin

35 / 50

35. sense9_The sense receptor used by blind people for reading on a braille is

36 / 50

36. sense45_which of the following structure in the ear is responsible for maintaining balance and body posture

37 / 50

37. sense13_When we look at the environment the receptor that help us to differentiate colors are

38 / 50

38. sense27_the light senstive part of the eye is the

39 / 50

39. sense43_the function of the tiny bones in ear is to

40 / 50

40. sense11_The receptors in the eyes that perceive vision are

41 / 50

41. sense21_which of the following removes bacteria from the eyes

42 / 50

42. sense18_Which of the following protects the eye from the shock of shaking or movement

43 / 50

43. sense50_the nerve that is involved with hearing

44 / 50

44. sense7_which of the folowing receptors senses joint position

45 / 50

45. sense16_Which of the following is not a protection for the eye

46 / 50

46. sense34_which of the following animal have round pupils

47 / 50

47. sense31_Which of the following is not correct

48 / 50

48. sense8_which of the following receptors detects pressure or touch

49 / 50

49. sense15_Which of the following is not a protection for the eye

50 / 50

50. sense10_The temperature receptors on the skin are

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Biology: Sense Organs Vol 2

1 / 50

1. sense75_when a kind of cone receptor is absent in the eye the person has

2 / 50

2. sense67_cataract of the eye affects which structure in the eye

3 / 50

3. sense60_the structure in the eye that holds the lens in place is the

4 / 50

4. sense94_the part of the brain responsible for perception of smell is

5 / 50

5. sense84_which of the following is required for night vision

6 / 50

6. sense97_which of the following does not have a specific taste bud for perception in the tongue

7 / 50

7. sense56_What is the correct sequence for the perception of smell in mammals?

8 / 50

8. sense77_Which of the following occurs when the curvature of the lens of the eye becomes uneven

9 / 50

9. sense59_the structure in the eye that changes the focus of the lens to see both far and near objects is the

10 / 50

10. sense98_the correct order in the mechanism of perceiving taste

11 / 50

11. sense53_the part of the tongue that tastes bitterness is

12 / 50

12. sense78_which of the following is not correct about color blindness

13 / 50

13. sense69_which of the following refers to short-sightedness

14 / 50

14. sense76_which of the following is not correct about presbyopia

15 / 50

15. sense87_which of the following animals does not have eyes that shine at night

16 / 50

16. sense61_which of the following focuses light to the retina of the eye

17 / 50

17. sense93_A person who cannot detect a particular smell or scent is

18 / 50

18. sense89_which of the following is not involved in maintaining balance and posture

19 / 50

19. sense90_which of the following is damaged by very loud noise or sound leading to deafness

20 / 50

20. sense85_which of the following is the correct order in the mechanism of vision

21 / 50

21. sense100_A substance used to test for genetic inheritance of inability to taste is

22 / 50

22. sense55_the part of the tongue that tastes sour is

23 / 50

23. sense66_which of the following happens when there is dim light in the environment

24 / 50

24. sense54_the part of the tongue that tastes salt is

25 / 50

25. sense74_which of the following conditions requires bifocal lens

26 / 50

26. sense80_which of the following is not good advice for the eyes

27 / 50

27. sense71_which of the following refers to opacity of the lens

28 / 50

28. sense79_which of the following is not good advice for the eyes

29 / 50

29. sense52_the part of the tongue that tastes sweetness is

30 / 50

30. sense86_which of the following is not correct about the mechanism of vision

31 / 50

31. sense65_which of the following happens when there is too much light in the environment

32 / 50

32. sense73_which of the following is a disease where the accomodation of the lens of the eye is impaired

33 / 50

33. sense96_the correct order in the mechanism of perceiving smell

34 / 50

34. sense99_Persons that lack the ability to tell the taste of substances are

35 / 50

35. sense88_which of he following is the correct order of the mechanism of hearing

36 / 50

36. sense58_which of the following is not involved in vision

37 / 50

37. sense57_The ability of the human eyes to focus far and near object is

38 / 50

38. sense81_the organism that causes river blindness is

39 / 50

39. sense95_which of the following have good sense of smell

40 / 50

40. sense63_which of the following is correct about what happens in the eye when the eye is focusing on a far or distant object

41 / 50

41. sense51_the nerve that is involved with smell

42 / 50

42. sense62_which of the following is correct about what happens in the eye when the eye is focusing on a near object

43 / 50

43. sense70_which of the following refers to long sightedness

44 / 50

44. sense92_which of the following is not good advice for the ears

45 / 50

45. sense64_in what situation will an object be visible to the eyes

46 / 50

46. sense91_which of the following is not a cause of deafness

47 / 50

47. sense83_which of the following is not involved in maintaining balance and posture

48 / 50

48. sense72_which of the following is not correct about long sightedness

49 / 50

49. sense82_which of the following is not involved in bending of the eye towards the retina

50 / 50

50. sense68_which of the following is not correct about short sightedness

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Respiration 1

1 / 50

1. resp9_the process of exchange of gases (respiration) in amoeba is

2 / 50

2. resp6_the organ of the body where atmospheric oxygen is taken in and carbondioxide is expelled is

3 / 50

3. resp35_which of the following correctly describes the mechanism of inhalation (inspiration ) in man

4 / 50

4. resp37_Internal respiration is the respiration inside the cell where food is converted to chemical energy. Which of the following is not correct about the process

5 / 50

5. resp25_which of the followiing is the respiratory surface in man

6 / 50

6. resp13_which of the following does not undergo respiration by diffusion of gases through the skin (cutaneous respiration)

7 / 50

7. resp18_which of the following is a means of gaseous exchange in amoeba

8 / 50

8. resp5_n the cells, the process by which carbon dioxide is exchanged for oxygen during respiration is by

9 / 50

9. resp30_which of the following prevent food from entering the airway in mammals

10 / 50

10. resp27_which of the following is not correct about cellular respiration

11 / 50

11. resp19_which of the following is used for gaseous exchange in fish

12 / 50

12. resp50_Which of the following is not a byproduct of internal respiration

13 / 50

13. resp42_Following vigorous exercise with development of oxygen dept, which of the following accumulates in the muscle causing muscle cramps

14 / 50

14. resp7_the part of the lung where oxygen is exchanged for carbondioxide is

15 / 50

15. resp49_What is respiratory quotient during respiration

16 / 50

16. resp10_which of the following has a respiratory system

17 / 50

17. resp8_what is the pathway of intake of oxygen from the atmosphere to the body cells

18 / 50

18. resp21_in fish carbondioxide diffuse out of the body through the

19 / 50

19. resp15_which of the following is a means of gaseous exchange by animals living in dry habitat

20 / 50

20. resp3_Aerobic respiration is the oxidation of food in the presence of oxygen. Which of the following are the products

21 / 50

21. resp26_During vigorous exercise or workout, the oxygen needed to remove excess build up of lactic acid in muscle is

22 / 50

22. resp32_which of the followin gis the voice box

23 / 50

23. resp36_which of the following correctly describes the mechanism of exhalation (expiration ) in man

24 / 50

24. resp16_which of the following are means of gaseous exchange by plants

25 / 50

25. resp47_which of the following is not correct about inspired and expired air

26 / 50

26. resp29_which of the following is not part of the respiratory tractin mammals

27 / 50

27. resp38_which of the following is not correct about the breathing mechanism in mammals

28 / 50

28. resp39_which of the following is not correct about the process of chemical respiration where food is converted to chemical energy

29 / 50

29. resp22_which of the following use external gills for respiration

30 / 50

30. resp2_The process of oxidation of food in the mitochondrium of cell to release energy is

31 / 50

31. resp34_which of the following is not involved in respiraiton in man

32 / 50

32. resp46_which of the following is not present in expired air

33 / 50

33. resp43_in simple acquatic plant like spirogyra, the air dissolved in water gets into the cells by

34 / 50

34. resp48_which of the following is not correct about the concentration of air

35 / 50

35. resp28_which of the following is not correct about comparison of cellular respiration

36 / 50

36. resp12_which of the following expires carbondioxide and takes in oxygen through the skin

37 / 50

37. resp24_which of the following is not part of the tracheal system for respiration

38 / 50

38. resp20_in fish, oxygenated water is drawn in through the

39 / 50

39. resp31_which of the following correctly describes the respiratory tract in mammals

40 / 50

40. resp1_The chemical energy that is released following oxidation of food is

41 / 50

41. resp41_During an experiment to demonstrate espiration in rat, when the air from the jar containing the rat turns lime water milky, this shows that the rat has expired

42 / 50

42. resp45_Which of the following is not present in inspired air

43 / 50

43. resp44_During experiment to demonstrate respiration in small potted plant, the air coming from the plant jar turned caustic soda(lime water) milky. This suggests that the potted plant

44 / 50

44. resp14_which of the following is not a means of gaseous exchange by terrestrial animals

45 / 50

45. resp4_Which of the following is a waste produce of respiration in animals

46 / 50

46. resp17_which of the following undergoes respiration through the skin and mouth

47 / 50

47. resp40_During aerobic respiration, which of the following correctly represents the overall process of chemical respiration to produce energy from food(glucose)

48 / 50

48. resp11_which of the following undergoes direct external respiration by diffusion of carbondioxide and oxygen through the membrane into the organism without posessing a respiratory system

49 / 50

49. resp23_The tracheal system is used for respiration in

50 / 50

50. resp33_the respiratory surface called air sac in mammals is the

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Genetics 1

Welcome to Genetics and Variation Quiz . The pass mark for this quiz is 90%. Best of Luck!

1 / 50

1. Which of the following is not correct

2 / 50

2. Which of the following is correct about of offspring genotype in a cross between TT and tt

3 / 50

3. Which of the following is correct

4 / 50

4. which of the following is not determined by DNA

5 / 50

5. which of the following characteristics is not influenced by genetic inheritance

6 / 50

6. When genetically dissimilar parents meet to produce an off-spring, the off-spring is called a

7 / 50

7. A cross where only one characteristic is considered is refered to as

8 / 50

8. After sexual reproduction off-springs are similar to parents in some traits due to

9 / 50

9. A scientist cross red colored plant with gene(Rb) with another Red colored plant with gene (Rb). If R stands for red color and b for blue color plant. Which of the following is not correct

10 / 50

10. A scientist identified that the color of a plants in his garde are green with gene G or yellow with gene y. He randomly selected a plant from is garden and found that the color was yellow. Which of the following is not correct

11 / 50

11. The basic chemical unit of DNA(Deoxy-riboNucleic Acid) is

12 / 50

12. Which of the following RNAs is not used by DNA to perform its function

13 / 50

13. Which of the following component of the cell is involved in hereditary

14 / 50

14. The individual inherits one gene from the mother and another from the father. If the gene from the mother does not manifest due to the presence of the gene from the father. The gene from the mother is said to be

15 / 50

15. The chemical particle that carries the genetic code for each individual is called

16 / 50

16. Which of the following is not correct

17 / 50

17. A trait that is expressed in the presence of another character that is suppressed is called

18 / 50

18. The type of division in which n number of chromosomes is formed in the daugther cells is called

19 / 50

19. Which of the following is responsible for color of skin in Albinos

20 / 50

20. which of the following is not correct

21 / 50

21. During which stage of cell division do the pair of contrasting genes or alleles separate into different gametes

22 / 50

22. the diploid number of chromosomes is

23 / 50

23. The Australian monk that is credited for being the father of the modern knowledge of genetics is

24 / 50

24. After the male sex cell(the sperm) unites with the female sex cell (the ovum) the following is formed

25 / 50

25. The elements within the chromosomes that determine the physical, mental and physiologic characteristics of an individual are called

26 / 50

26. Which of the following is not a type of RNA

27 / 50

27. During an experiment, the scientist crossed pure breed tall plants with genotype TT with pure breed short plant with genotype tt. All the first generation offsprings were tall plants. Which of the following is not correct

28 / 50

28. A flower is white color and has genotype ww, So the flower is said to be

29 / 50

29. The physical manifestation of the genetic inheritance is called

30 / 50

30. A flower is red and has genotype Rr. The flower is

31 / 50

31. The haploid number of chromosomes is

32 / 50

32. The organisms that were used in genetic experiment by Gregor Mendel were

33 / 50

33. which of the following will be the ratio of the phenotype of the offsprings when Rr cross Rr

34 / 50

34. Which of the following is not present in DNA chain

35 / 50

35. Which of the following is correct about the mendelian law of segregation

36 / 50

36. which of the following is not correct

37 / 50

37. The component of structure which directly determines inheritance is

38 / 50

38. A scientist found that the genotype of a tall plant was TT, and another tall plant was Tt. Which of the following is not correct

39 / 50

39. R stands for Round leaves and r for wrinkled leaves. If parent with Rr cross parent with Rr , which of the following will occur in the off-spring leaves

40 / 50

40. The light skin in an albino is an example of

41 / 50

41. A pair of contrasting gene occupying same locus on a chromosome are called

42 / 50

42. Which of the following is responsible for the color of skin in human beings

43 / 50

43. The two strands that form the chromosome are called

44 / 50

44. Which of the following terminologies refers to the word Off-spring

45 / 50

45. A Red flower has genotype RR , which of the following is correct

46 / 50

46. Which of the following is not a binding between purine base and pyrimidine base in DNA helix

47 / 50

47. Which of the following is not present in RNA

48 / 50

48. R stands for Round leave and r for wrinkled leaves . If RR parent cross Rr parent. What will be the shape of the leaves of the offsprings

49 / 50

49. The way and manner by which traits are transferred from parent to child is called

50 / 50

50. The genes an individual inherits from their parent is called

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Genetics & Variation 2

There are 50 multiple choice questions in this MCQ. The pass mark is 90%. Best of Luck

1 / 50

1. The F1 of a cross between a tall and a dwarf plant was tall. The F1 was advanced to F2. How many of 120 F2 plants will be dwarf?

2 / 50

2. A gene which expresses itself only in the homozygous condition is

3 / 50

3. The hereditary material of the cell is:

4 / 50

4. Which of the following is sex linked

5 / 50

5. Which of the following is a discontinuous variation

6 / 50

6. In a mendelian cross of red and white plant, the exhibition of incomplete dorminance in the off-spring will give

7 / 50

7. If the Allelel for baldness is Bb, a female carrier will have what chromosome

8 / 50

8. A man who is a carrier of hemophilia trait marries a woman who is homozygous recessive, what percentage of their children will have hemophilia

9 / 50

9. Which of the following will result from a cross between Yy and Yy

10 / 50

10. A mammal with red fur and long ears was crossed with another having white fur and short ears. If the offspring had red fur and short ears, then

11 / 50

11. Which of the following is true of the children of a hemophilic man who marries a woman that is not hemophilic and does not carry the trait?

12 / 50

12. The character producing factors in living organisms are

13 / 50

13. Which of the following is monohybrid cross

14 / 50

14. The probability of being a boy or girl depends on the

15 / 50

15. When two parents are carriers of albinism gene, how many of their off-springs will be albinos

16 / 50

16. A man an his wife are heterozygous for sickle cell trait, the percentage of their children that will be carriers or sicklers will be

17 / 50

17. Both recessive and dominant characters are found on

18 / 50

18. A colorblind man marrier a carrier woman, what percentage of their children will be colorblind

19 / 50

19. Sex-linked traits are located on

20 / 50

20. A dog lost its tail in an accident, if it crosses another dog with normal tail, how many of the puppies will be born without tail

21 / 50

21. The ratio of carriers to sicklers in the F1 generation derived from a parental cross of two carriers of the hemoglobin S gene is:

22 / 50

22. Aman with a normal haemoglobin (AA) marries a woman who has sickle-cell haemoglobin (SS).They have a child who has sickle-cell trait. Which of the following genotypes could be associated with the child’s haemoglobin ?

23 / 50

23. An accurate identification of an offender(for example a rapist) can be carried out by

24 / 50

24. A man who is heterozygous for hemophillia marries a woman who is double recessive, what percentage of their children will have hemophilia

25 / 50

25. If a DNA strand has base sequence ACT, the complementary stand must be

26 / 50

26. If XN is the dominant allele for color blindness and Xn is the recessive allele. A boy with chromome YXn will be

27 / 50

27. A feature associated with Y chromosome in humans

28 / 50

28. A tall plant crossed with a dwarf plant produces offspring of which half are tall and half are dwarf. What are the genotypes of the parents?

29 / 50

29. Which of the following is correct about a recessive allele

30 / 50

30. If a woman’s genotype is Tt Qq Rr, what would be the gene content of her eggs?

31 / 50

31. The first four children of a couple were girls, the probability of the 5th being a girl is

32 / 50

32. The biological factor that is unique to all individual is

33 / 50

33. The DNA molecule is a chain of repeating

34 / 50

34. If a plant, homozygous for round and yellow (RR;YY), is crossed with a wrinkled green type (rr;yy), all of the resulting seeds will be

35 / 50

35. People with sickle-cell anaemia have haemoglobin:

36 / 50

36. The number of chromosomes in each somatic cell is

37 / 50

37. A man with blood group A is married to a woman with blood group A. Which of the following group combinations is possible if the family has three children?

38 / 50

38. The inheritable characters that are determined by a gene located on the X- chromosome is

39 / 50

39. A yellow maize is planted, and all the fruits obtained have yellow seeds. When they are cross-bred, yellow seeds and white seeds are obtained in a ratio of 3:1. The yellow seed is said to be:

40 / 50

40. A cross where only one characteristic is considered is refered to as

41 / 50

41. Women do not suffer color bilindness because

42 / 50

42. Which of the following is not correct about albinism

43 / 50

43. The basic point of impact which leads to mutation is

44 / 50

44. The correct ordering of the hereditary material based on size is

45 / 50

45. A man who has the trait for color blindness marries a normal woman. What percentage of their children would be sufferers, carriers, and normal respectively?

46 / 50

46. If R and r denote the genes for a character, the offspring of the cross between RR and Rr are:

47 / 50

47. The sex-linked defect in which very slight cuts produce severe bleeding is known as:

48 / 50

48. if a DNA stran has base sequence AGT, the complementary strand must be

49 / 50

49. If a dark-skinned woman (Bb) marries an albino man (bb) and they have four children, how many of the children will be dark-skinned?

50 / 50

50. In the gene locus for eye colour in humans, the allele for brown eyes is dominant over the allele for blue eyes. If a homozygous brown-eyed girl has a brother with blue eyes, what are the likely phenotypes of their parents’ eye colour?

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Genetics & Variation 3

There are 50 questions in this Quiz. The pass mark is 90%. Best of Luck!

1 / 50

1. which of the following is correct about blood group O

2 / 50

2. Which of the following is not correct about albinism

3 / 50

3. Which of the following trait is not inherited in a recessive trait

4 / 50

4. During fertilization if the ovum receives Y chromosome from the sperm , which of the following will occur

5 / 50

5. A man who is heterozygous for hemophillia marries a woman who is double recessive, what percentage of their children will have hemophilia

6 / 50

6. Which of the following is the genotype of blood group O

7 / 50

7. A man who is a carrier of hemophilia trait marries a woman who is homozygous recessive, what percentage of their children will have hemophilia

8 / 50

8. To reduce sickle cell disease and trait in a population which of the following is correct

9 / 50

9. Mating between closely related organisms such as father and daughter is called

10 / 50

10. Which of the following is a disadvantage of inbreeding in humans

11 / 50

11. An example of trait controlled by more than one gene or multiple allele is

12 / 50

12. Which of the following is the genotype of blood group AB

13 / 50

13. The differences between individuals is called

14 / 50

14. People without antigen on their blood cells have blood group

15 / 50

15. During cell division, the process that leads to variation between individuals is

16 / 50

16. Which of the following blood groups is a universal donor

17 / 50

17. A situation where cross between unrelated strains leads to stronger off-spring is called

18 / 50

18. Which of the following will result from a cross between Yy and Yy

19 / 50

19. Which of the following is not correct about a woman of blood group O and husband of blood group AB

20 / 50

20. When two parents are carriers of albinism gene, how many of their off-springs will be albinos

21 / 50

21. When more than one pair of allele control for same trait it is referred to as

22 / 50

22. Which of the following is correct about a recessive allele

23 / 50

23. Which of the following is not a genetically determined factor that can be used to differentiate individuals

24 / 50

24. Which of the following is not a type of blood group

25 / 50

25. A dog lost its tail in an accident, if it crosses another dog with normal tail, how many of the puppies will be born without tail

26 / 50

26. A man has blood group A which of the following is correct

27 / 50

27. which of the following is not a type of polygenic inheritance

28 / 50

28. A type of genetic inheritance where a trait is controlled by two or more genes, each contributing to the overall phenotype

29 / 50

29. Which of the following is not a genetically determined factor that can be used to differentiate individuals

30 / 50

30. An accurate identification of an offender(for example a rapist) can be carried out by

31 / 50

31. Which of the following blood groups is a universal recipient

32 / 50

32. Which of the following is inherited as a recessive trait

33 / 50

33. which of the following is not correct about a dominant allele

34 / 50

34. When two parents are carriers of albinism gene, how many of their off-springs will be albinos

35 / 50

35. Which of the following is the genotype of blood group A

36 / 50

36. Which of the following is correct about blood group O

37 / 50

37. the crossign of two completely unrelated strains of organism is

38 / 50

38. Which antigen is present on the cell of person with blood group A

39 / 50

39. A man with blood group AB marries a woman with blood group O, how many of their children will be blood group O

40 / 50

40. Which of the following is a recessive gene trait

41 / 50

41. When incorrect blood transfusion or blood transfusion mismatche occurs. Which of the following will happen

42 / 50

42. During fertilization if the ovum receives X chromosome from the sperm, which of the following will occur

43 / 50

43. Which of the following is not inherited in a recessive trait

44 / 50

44. To avoid sickle cell off-springs which of the following is correct

45 / 50

45. Mating of individuals of same species but different genetic characteristics is

46 / 50

46. Which of the following is sex linked

47 / 50

47. Which of the following is correct about a recessive allele

48 / 50

48. When there is incorrect blood transfusion, which of the following occurs

49 / 50

49. Which of the following is not correct

50 / 50

50. Which of the following kind of breeding leads to stronger offsprings than the parents

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Biology: Excretion

1 / 50

1. excretion44_Animals that are not able to maintain their body temperature are

2 / 50

2. excretion4_Which of the following terrestial animals does not use uric acid in excretion

3 / 50

3. excretion47_which of the following are the two main layers of the skin

4 / 50

4. excretion50_which of the following is not a function of the skin in man

5 / 50

5. excretion43_Animals that are able to maintain their body temperature

6 / 50

6. excretion15_which of the following is used for excretion in cockroach

7 / 50

7. excretion41_which of the following receptors is not present in the skin

8 / 50

8. excretion19_which of the following is used for excretion in whales

9 / 50

9. excretion25_Which of the following is used for excretion in spider

10 / 50

10. excretion31_Sebum is oily substance which lubricates hair and keeps it flexible. Which of the following secretes sebum

11 / 50

11. excretion22_Which of the following pairs is used for excretion in man

12 / 50

12. excretion21_Which of the following is used for excretion in shrimp, a crustacean

13 / 50

13. excretion12_Which of the following is not used for excretion in mammals

14 / 50

14. excretion42_Animals that are not able to regulate their body temperature are

15 / 50

15. excretion35_Which of the following structures does not develop from the skin

16 / 50

16. excretion3_which of the following waste products helps to conserve energy while excreting nitrogenous waste

17 / 50

17. excretion27_Which of the following is excretory structure in flatworms like tapeworms

18 / 50

18. excretion28_Which of the following is breathing pores present at the bark of woody trees

19 / 50

19. excretion13_which of the following is used for excretion in flatworm

20 / 50

20. excretion30_which of the following is not correct about excretion

21 / 50

21. excretion26_which of the following is used for excretion in protozoa

22 / 50

22. excretion20_Which of the folowing isused for excretion in amoeba

23 / 50

23. excretion24_which of the following group is used for excretion in man

24 / 50

24. excretion6_which of the following is not a waste product in plants

25 / 50

25. excretion49_Which layer of the skin contains the blood vessles, nerves and glands

26 / 50

26. excretion34_Which of the following structures does not develop from the skin

27 / 50

27. excretion5_in which organ is protein or amino acid deaminated for excretion

28 / 50

28. excretion17_which of the following is used for excretion in crustacea

29 / 50

29. excretion23_Which of the following trio are used for excretion in man

30 / 50

30. excretion18_which of the following is not used for excretion in plants

31 / 50

31. excretion14_which of the following is used for excretion in arachnids

32 / 50

32. excretion39_which of the following causes increased sweating

33 / 50

33. excretion38_which of the following processes generates body heat during cold weather

34 / 50

34. excretion10_which of the following is used for excretion in fish

35 / 50

35. excretion46_Which of the following is not a layer in the epidermis of the skin

36 / 50

36. excretion11_Which of the following is not used for excretion in mammals

37 / 50

37. excretion2_Which of the following is not one of the main waste products in animals

38 / 50

38. excretion1_Removal of products of metabolic activities which may become harmful to the body is called

39 / 50

39. excretion45_Animals that are able to maintain their body temperature

40 / 50

40. excretion40_which of the following causes straightening of the skin hairs in cold weather

41 / 50

41. excretion37_which of the following does not occur in hot weather

42 / 50

42. excretion16_which of the following is used for excretion in earthworm

43 / 50

43. excretion29_which of the following is not true about transpiration

44 / 50

44. excretion36_which of the following is not a good advice for the care of the skin

45 / 50

45. excretion7_which of the following strucures is not used for excretion

46 / 50

46. excretion48_Which of the following is not a structure in the skin

47 / 50

47. excretion32_which of the following is not a function of the skin in man

48 / 50

48. excretion9_which of the following isnot used for excretion

49 / 50

49. excretion8_which of the following strucures is not used for excretion

50 / 50

50. excretion33_which of the following is not a function of the skin in man

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