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WAEC Biology 1994 Question 21

Question 21

Feeding Relationships and Energy Flow

Which of the following represents the correct order in a possible food chain?

  1. A.Crustacean → diatom → fish → man
  2. B.Fish → crustacean → man → diatom
  3. C.Man → fish → crustacean → diatom
  4. D.Diatom → crustacean → fish → man
  5. E.Man → diatom → fish → crustacean
Show the answer and explanation

Answer: D (Diatom → crustacean → fish → man)

Explanation

The chain starts with the producer (diatom), eaten by a crustacean, eaten by fish, eaten by man.