Question

benchmark q1 study guide
directions: answer each question using knowledge that has been gained so far this year. this test is cumulative, so it may have information not on the study guide, but that you are responsible for.
section #1- human impact and biodiversity

1. how much energy is passed from one trophic level to the next?

a. 5%
b. 20%
c. 10%
d. 90%

Explanation:

This is a core ecological principle: the 10% rule states that only approximately 10% of the energy stored as biomass in one trophic level is passed on to the next trophic level; the rest is lost as heat, used for metabolism, or remains undigested.

Answer:

c. 10%