Question

The typical percentage of loss of energy in transfers from one trophic level to the next is about

A. 35%
B. 60%
C. 1%
D. 90%
E. 5%

Answer 1

D. 90%

Explanation:

• When energy flows in a food chain, it is observed that the amount of energy flow decreases with successive trophic levels.
• It is generally observed that approximately 90% of the energy available at a trophic level is used up and only remaining 10 % is transferred to the next .
• This is termed as ten percent law.
• Thus, we can say that 90% of energy is lost when the energy is transferred from one trophic level to another.