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Biology Past Questions and Answers

Waec Biology Questions

Question 606:
Soil factors in an ecosystem are referred to as
  • A Topographic
  • B Climatic
  • C Biotic
  • D Edaphic
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Question 607:
A known weight of soil sample was oven-dried to obtain a constant weight. The loss in weight was due to
loss of
  • A Organic matter only
  • B Water only
  • C Water and organic matter
  • D Inorganic matter and water
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Question 608:
Carbon is added to the atmosphere by the following processes except
  • A Respiration
  • B Burning
  • C Photosynthesis
  • D Volcanic eruption
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Question 609:
Which of the following is a means of measuring primary production?
  • A Rate of reproduction of animals
  • B Life span of an organism
  • C Number of predators in an environment
  • D Harvested plants in a unit area
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Question 610:
A situation whereby some mammals remain inactive throughout dry and hot seasons is known as
  • A Aestivation
  • B Dormancy
  • C Burrowing
  • D Incubation
View Answer & Explanation