Question

13 a diagram that shows the relative amounts of energy, matter, or organisms at each trophic level is an:
a ecological pyramid
b biogeochemical map
c energy cycle
d food chain

Explanation:

An ecological pyramid shows the relative amounts of energy, matter, or organisms at each trophic level. A biogeochemical map shows the cycling of elements. An energy cycle is not a standard term for this concept. A food chain shows the linear feeding relationships.

Answer:

A. Ecological pyramid