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JAMB Biology 2000 Question 36

Question 36

Feeding Relationships and Energy Flow

In a food chain, each succeeding level in a forward direction represents

  1. A.an increase in the number of individuals
  2. B.a decrease in the number of individuals
  3. C.an increase in the biomass of individuals
  4. D.a gain in the total energy being transferred.
Show the answer and explanation

Answer: B (a decrease in the number of individuals)

Explanation

Energy is lost at every feeding level, so each level up the chain usually has fewer individuals (pyramid of numbers).