Question

Why is a food web a better representation of relationships within an ecosystem than a food chain? A. A food web shows that most organisms consume and are consumed by more than one organism. B. A food chain shows that most organisms consume and are consumed by more than one organism. C. A food chain shows only a single pathway of energy. D. A food web shows a single pathway of energy flow through the ecosystem.

Answer 1

c. a food chain shows only a single pathway of energy 

Answer 2

A.

a food chain is almost never possible, as in any ecosystem most species are consumed by more than one species of a higher trophic level.