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Monday, 15 June 2026
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Biology Past Questions and Answers

Waec Biology Questions

Question 431:
The following structures are adaptation for water conservation except
  • A Sunken stomata
  • B Scales in animals
  • C Lenticels in stems
  • D Spines in plants
  • E Thick leaves
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Question 432:
The following structures are adaptation for water conservation except
  • A Sunken stomata
  • B Scales in animals
  • C Lenticels in stems
  • D Spines in plants
  • E Thick leaves
View Answer & Explanation
Question 433:
Which of the following ecological factors causes food shortage?
  • A Low rate of reproduction
  • B Emigration
  • C Drought
  • D Topography
  • E Wind direction
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Question 434:
Density, mortality rate, birth rate are the factors that affect
  • A Population
  • B Dominance
  • C Cover
  • D Habitat
  • E Abiotic community
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Question 435:
Ultra-filtration process at the Bowman’s capsule is facilitated by
  • A The volume of water in the blood
  • B The high concentration of urea in the blood of the Bowman’s capsule
  • C The differential blood pressure between the glomerulus and the Bowman’s capsule
  • D The differential blood volume between the glomerulus and the Bowman’s capsule
  • E Heavy weight of the urea, water, glucose and amino acids in the Bowman’s capsule.
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