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Saturday, 04 April 2026
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Biology Past Questions and Answers

Waec Biology Questions

Question 481:
Which of the following organisms will have the highest biomass?
  • A Small fish
  • B Tadpole
  • C Hawk
  • D Phytoplankton
  • E Big fish
View Answer & Explanation
Question 482:
Which of the following is the correct sequence for energy transfer and nutrient cycling among living things
in an ecosystem?
  • A Consumers → producers → decomposers
  • B Producers → decomposers → consumers
  • C Decomposers → producers → consumers
  • D Producers → consumers → decomposers
  • E Consumers → decomposers → producers
View Answer & Explanation
Question 483:
Which of the following factors does not affect the distribution of organisms in an aquatic habitat?
  • A Turbidity
  • B Depth of water
  • C Humidity
  • D Temperature
  • E Availability of nutrient
View Answer & Explanation
Question 484:
A habitat with low rainfall, very low humidity, exposed soil with little plant cover, few trees and shrubs is
likely to be
  • A A rain forest
  • B A mangrove forest
  • C A desert
  • D A swamp
  • E An estuarine
View Answer & Explanation
Question 485:
Which of the following factors may not cause over-crowding?
  • A Limited space
  • B Scarcity of food
  • C Reduced birth rate
  • D Lose immigration conditions
  • E Increased birth rate
View Answer & Explanation