The number of trophic levels in most communities is limited by
A) the presence of decomposers.
B) predation.
C) competitive exclusion.
D) succession.
E) the loss of energy between trophic levels.

Question

Quizplus · Accepted Answer

The loss of energy between trophic levels restricts the number of trophic levels in most communities. As energy is transferred from one level to another, a significant amount of energy is lost as heat, which limits the carrying capacity of the ecosystem. This makes it difficult for higher trophic levels to be sustained, resulting in a limited number of trophic levels in most communities.

The Number of Trophic Levels in Most Communities Is Limited