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Thursday, 09 April 2026
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Biology Past Questions and Answers

Jamb Biology Questions

Question 1:
The most abundant group of organisms in the animal kingdom?
  • A Mammalia
  • B Aves
  • C Insecta
  • D Annelida
View Answer & Explanation
Question 2:
The movement of part of a plant in response to external stimulus of no particular direction is?
  • A Taxism
  • B Tropism
  • C Haptotropic movement
  • D Nastic movement
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Question 3:
The mutation theory of organic evolution was propounded by?
  • A Gregor Mendel
  • B Hugo de Vries
  • C Jean Lamarck
  • D Charles Darwin
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Question 4:
If both parents are heterozygous for a trait. the probability that an offspring will be recessive for that trait is?
  • A 1/2
  • B 1/4
  • C 1
  • D 3/4
View Answer & Explanation
Question 5:
Blood circulation in a mammal is said to be double because? 
  • A It passes twice through the heart in a complete circuit
  • B It moves in both arteries and veins
  • C It circulates in both the heart and other organs
  • D The heart contains auricles and ventricles
View Answer & Explanation