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Tuesday, 10 November 2026
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Biology Past Questions and Answers

Waec Biology Questions

Question 846:
Which of the following values showing the total biomass of organisms in a food chain represents the secondary consumer?
  • A 40,000
  • B 3,000
  • C 20
  • D 1
View Answer & Explanation
Question 847:
Which of the following environmental factors is not considered in a terrestial habitat?
  • A Temperature
  • B Sunlight
  • C Humidity
  • D Turbidity
View Answer & Explanation
Question 848:
The gas produced during decomposition of matter is
  • A Hydrogen sulphide
  • B Carbon monoxide
  • C Chlorine
  • D Oxygen
View Answer & Explanation
Question 849:
Fish cannot survive on land because it has
  • A A body covered with scales
  • B A streamlined body
  • C No lungs
  • D No walking appendages
View Answer & Explanation
Question 850:
Pneumatophores are essential for
  • A Nutrition
  • B Movement
  • C Breathing
  • D Growth
View Answer & Explanation