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Monday, 17 August 2026
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Biology Past Questions and Answers

Topic: Reproduction in mammals

Jamb Biology Questions - Reproduction in mammals

Question 16:
Viviparity occurs mainly in the
  • A Mammals
  • B Reptiles
  • C Aves
  • D Amphibians
View Answer & Explanation
Question 17:
A hormone secreted at IV serves to
  • A Make the body react to emergencies
  • B Lower blood glucose level
  • C Raise the level of calcium ions in the blood
  • D Facilitate the development of facial hairs
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Question 18:
The most important hormone that induces the ripening of fruit is
  • A Ethylene
  • B Indole acetic acid
  • C Gibberallin
  • D Cytokinin
View Answer & Explanation
Question 19:
The main function of the structure labelled I is to
  • A Store food for the young plant
  • B Pull the young shoot above the ground
  • C Store water for the seedling
  • D Protect the young plumule
View Answer & Explanation
Question 20:
Stunted growth and poor root development are a result of a deficiency in
  • A Sulpur
  • B Phosphorus
  • C Calcium
  • D Iron
View Answer & Explanation