In a simple food chain with 10% efficiency, a net primary production rate at the first trophic level is 10,000 units. How many units are available to the fourth trophic level?

Question

Quizplus · Accepted Answer

With 10% efficiency, each trophic level will have 10% of the energy available at the previous trophic level. Therefore, the available energy to the fourth trophic level will be 10 units (10,000 x 0.1 x 0.1 x 0.1 = 10).

In a Simple Food Chain with 10% Efficiency, a Net