Pyramids of numbers are of limited usefulness because they:
A) do not indicate the biomass of the organisms at a given time.
B) do not indicate the gross primary productivity of each species.
C) do not include energy flow through the ecosystem.
D) include three trophic levels.
E) None of the answer choices is correct.

Question

Quizplus · Accepted Answer

Pyramids of numbers only show the number of organisms at each trophic level, not their biomass, which can vary greatly between organisms of different sizes.

Pyramids of Numbers Are of Limited Usefulness Because They