Which of the following is necessary to maintain a balanced (stable) ecosystem?
A) Matter (i.e., elements) has to cycle.
B) There must be an outside energy source.
C) Various populations of producers and consumers must be proportional.
D) Energy must be allowed to flow through the ecosystem.
E) All of the answer choices describe necessary factors for maintaining a balanced ecosystem.

Question

Quizplus · Accepted Answer

All of the answer choices describe necessary factors for maintaining a balanced ecosystem. Matter must cycle, there must be an outside energy source, various populations of producers and consumers must be proportional, and energy must be allowed to flow through the ecosystem. Failure to maintain any one of these factors can result in an unbalanced or unstable ecosystem.

Which of the Following Is Necessary to Maintain a Balanced