JAMB: BIOLOGY
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2022 JAMB Biology Past Questions
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Title: 2019 Biology Exam Past Questions, Answers & Solutions for JAMB.
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Time Allowed: 30 minutes
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Question 1 of 40
1. Question
Which of these animals is radially symmetrical?
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Question 2 of 40
2. Question
Deamination occurs in the
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Question 3 of 40
3. Question
In an agricultural ecosystem, the biotic component consists of
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Question 4 of 40
4. Question
Unlike auxins, gibberellins
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Question 5 of 40
5. Question
Which of the following relationships involves only one organism?
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Question 6 of 40
6. Question
Double fertilization is a unique feature of
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Question 7 of 40
7. Question
The bright colours of the comb and feathers in the peacock are for
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Question 8 of 40
8. Question
The main function of the petal of a flower is to
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Question 9 of 40
9. Question
The mammalian endocrine system is responsible for
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Question 10 of 40
10. Question
The following organisms are hermaphrodites EXCEPT
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Question 11 of 40
11. Question
Spirogyra, Euglena and Chlamydomonas share many characteristics EXCEPT
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Question 12 of 40
12. Question
Which of the following phyla have members with both internal and external segmentation?
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Question 13 of 40
13. Question
The first step in the process of photosynthesis is the
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Question 14 of 40
14. Question
One of the accessory organs of the digestive system is the
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Question 15 of 40
15. Question
Which of the following can bring about the greatest increase in the rate of transpiration?
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Question 16 of 40
16. Question
Use the figure below to answer the question
Which of the structure is the molar?
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Question 17 of 40
17. Question
Use the figure below to answer the question
What is the function of 3?
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Question 18 of 40
18. Question
The nephridia in the earthworm forms part of the
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Question 19 of 40
19. Question
Which of the following animals has homodont dentition?
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Question 20 of 40
20. Question
The blood vessel which carries blood from the alimentary canal to the liver is the
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Question 21 of 40
21. Question
The response shown by the tips of the root and shoot of a plant to the stimulus of gravity is
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Question 22 of 40
22. Question
Which vitamin plays an important role in blood clotting?
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Question 23 of 40
23. Question
The end product of glycolysis in plants and animals is
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Question 24 of 40
24. Question
The gland directly affecting metabolic rate of growth and development is known as
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Question 25 of 40
25. Question
The key event in the transition of the amphibians from water to land is the
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Question 26 of 40
26. Question
The inner ear contains two main organs, namely the
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Question 27 of 40
27. Question
Complex social behaviour and organization are found mostly in
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Question 28 of 40
28. Question
The mutation theory of organic evolution was propounded by
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Question 29 of 40
29. Question
Most monocots are easily recognized by their
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Question 30 of 40
30. Question
When oil is poured into the breeding site of mosquito, it
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Question 31 of 40
31. Question
Animals aestivate when the environment in which they live becomes
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Question 32 of 40
32. Question
In dissection, the rib cage of a mammal has to be opened in order to expose the
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Question 33 of 40
33. Question
Use the diagram below to answer the question
The structure labelled II articulates with III to form a
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Question 34 of 40
34. Question
Use the diagram below to answer the question
Which of the bones is the radius?
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Question 35 of 40
35. Question
Floating microscopic heterotrophs are mostly grouped as
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Question 36 of 40
36. Question
The highest percentage of energy in an ecosystem occurs at the level of the
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Question 37 of 40
37. Question
The population density of Tridax in an abandoned square farmland of size 200 m was found to be 5 plants per m2. The population size of the plant on the farm is
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Question 38 of 40
38. Question
The natural process that produces adaptive evolutionary changes is
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Question 39 of 40
39. Question
The absence of anti-diuretic hormone in humans results in
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Question 40 of 40
40. Question
An accurate identification of a rapist can be carried out by conducting
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