An Ecosystem Undergoes a Disturbance, and as It Recovers, Its

Multiple Choice

An ecosystem undergoes a disturbance, and as it recovers, its species composition changes: the new ecosystem is different from the original. This suggests that

A) the necessary balance of nature has been maintained.
B) ecosystems remain unchanged through time.
C) ecosystems may change with changing circumstances.
D) the new ecosystem was incorrectly described; it is the same as the original.