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Tuesday, 23 June 2026
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Biology Past Questions and Answers

Topic: Animalia

Jamb Biology Questions - Animalia

Question 26:
when an operculate fish breathes it takes in water through the
  • A Mouth and passes it out through the same way
  • B Mouth and passes it out through the operculum
  • C Operculum and passes it out through the mouth
  • D Operculum and passes it out through the nostrils
  • E Nostrils and passes it out through the operculum
View Answer & Explanation
Question 27:
External ears of mammals consist of
  • A Pinna and tympanum
  • B Pinna only
  • C Auditory meatus only
  • D Auditory meatus and pinna
  • E Auditory meatus and tympanum
View Answer & Explanation
Question 28:
Flatworms and roundworms are said to be invertebrates because
  • A They are small animals
  • B They can live inside the vertebrates
  • C Some of them are unicellular
  • D They have no backbones
  • E They are parasitic
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Question 29:
Which of the following is not associated with excretion in mammals
  • A Glomerulus
  • B Urea
  • C Faeces
  • D Carbon Dioxide
  • E Bowman's capsule
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Question 30:
In what order do the following structure develop during the metamorphosis of the toad? 1. External gills 2. Internal gills 3. Forelimbs 4.Hindlimbs 5. Mouth
  • A 12345
  • B 15243
  • C 21345
  • D 53412
  • E 54321
View Answer & Explanation