Question

As energy is passed through the food chain, some of the energy is lost as heat. What is the approximate amount of energy that is passed from one trophic level to the next?
A. 10%
B. 15%
C. 75%
D. 50%

Answer 1

The approximate amount of energy that is passed from one trophic level to the next is typically A. 10%. This is known as the 10% rule in ecology, which states that only about 10% of the energy at one trophic level is transferred to the next level, while the rest is lost as heat and through metabolic processes.