JAMB Biology 2004 Question 36

Question 36

Feeding Relationships and Energy Flow

The progressive loss of energy at each level in a food chain leads to

  1. A.an increase in biomass at each successive level
  2. B.a decrease in biomass at each successive level
  3. C.an increase in the number of organisms at each successive level
  4. D.an increase in the total weight of living matter at each successive level
Show the answer and explanation

Answer: B (a decrease in biomass at each successive level)

Explanation

Energy is lost as heat at each feeding level, so less is left to build new living matter. Biomass gets smaller at each higher level.