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Biology Past Questions and Answers

Jamb Biology Questions

Question 21:

Which of the following is the correct order of the vertebrae along the spinal column?

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A Axis â†’ atlas â†’ thoracic â†’ lumbar â†’ cervical â†’ sacral
B Atlas → cervical → axis → thoracic → lumbar→ sacral
C Atlas â†’ axis â†’ cervical â†’ thoracic â†’ lumbar â†’ sacral
D Axis â†’ atlas â†’ cervical â†’ thoracic â†’ sacral â†’ lumbar

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Question 22:

Which of the following is TRUE of the process of conjugation in paramecium?

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A Micronucleus disintegrates
B Each ex-conjugant divides only once
C Macronucleus undergoes division
D Each micronucleus divides twice

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Question 23:

The bright colours of the comb and feathers in the peacock are for

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A Sex differenciation
B Beauty
C Courtship
D Defence

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Question 24:

The main function of the petal of a flower is to

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A Attract pollination agents
B Protect the flower while still in bud
C Serve as landing stage for insects
D Protect the inner paisr from desiccation

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Question 25:

In the mammal, the autonomic nervous system consists of

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A Sympathetic and parasympathetic system
B Brain and spinal nerves
C Brain and cranial nerves
D Spinal cord and spinal nerves

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