Question

which represents the amount of potential food available at each trophic level?
food chain
food web
energy pyramid
biomass pyramid

Explanation:

A biomass pyramid shows the total mass of organisms at each trophic level, which represents the amount of potential food available. A food - chain is a linear sequence of organisms, a food - web is a complex network of food - chains, and an energy pyramid shows the flow of energy at each trophic level.

Answer:

D. biomass pyramid