Jamb Biology Past Questions For Year 1993

Question 21

This lower jaw is typical of a

jamb 1993

  • A. sheep
  • B. rabbit
  • C. dog
  • D. cat
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Question 22

Which of the labelled parts is the diastema?

jamb 1993

  • A. 2
  • B. 3
  • C. 4
  • D. 6
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Question 23

The main function of the petal of a flower is to

jamb 1993

  • 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 24

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

jamb 1993

  • A. sex differenciation
  • B. beauty
  • C. courtship
  • D. defence
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Question 25

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

jamb 1993

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