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JAMB Biology 1986 Question 43

Question 43

Ecosystem and Ecological Factors

In an agricultural ecosystem, the biotic component consists of

  1. A.crops, pests and beneficial insects
  2. B.crops, temperature and humidity
  3. C.pests, beneficial insects and water
  4. D.crops, water and soil.
Show the answer and explanation

Answer: A (crops, pests and beneficial insects)

Explanation

Biotic means living. Crops, pests and insects are all living; temperature, humidity, water and soil are abiotic.