Which of the following is correct?
A) There is only one community within each distinct ecosystem.
B) An ecosystem is the interaction of many communities with the abiotic physical components of their environment.
C) Within a single lake there is usually only one community.
D) By definition, a community includes abiotic factors.

Question

Quizplus · Accepted Answer

An ecosystem is not just one community, but rather a collection of different communities interacting with each other and their environment.

Answer: C
 This statement is not always true. Within a single lake there may be several different communities, such as fish, algae, and bacteria populations.

Answer: D
 This statement is false. A community only includes biotic factors, such as the different species of plants and animals that live in an area. Abiotic factors are part of the ecosystem, but not part of any specific community.

Therefore, the best choice is B.

Which of the Following Is Correct