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WAEC Biology 2015 Question 28

Question 28

Ecosystem and Ecological Factors

Which of the following components make up an ecosystem?

  1. A.Decomposers, animals and non-living factors
  2. B.Living and non-living factors
  3. C.Plants and non-living factors
  4. D.Plants, decomposers and non-living factors
Show the answer and explanation

Answer: B (Living and non-living factors)

Explanation

An ecosystem is all the living things (plants, animals, decomposers) in an area together with the non-living factors around them. Only option B covers everything.