Trophic Efficiency in an Ecosystem Can Be Illustrated by a Pyramid

Multiple Choice

Trophic efficiency in an ecosystem can be illustrated by a pyramid because energy flow

A) varies with each type of ecosystem.
B) cannot be compared between ecosystems.
C) increases at each successive trophic level.
D) decreases at each successive trophic level.
E) remains the same while the biomass is less at each trophic level.