A Population of Water Fleas in One Pond Has Been

Multiple Choice

A population of water fleas in one pond has been declining. A storm leads to the migration of a few individuals from another pond into the original subpopulation, and the new migrants help prevent the original population from going extinct. This is an example of

A) environmental carrying capacity.
B) compensation.
C) the rescue effect.
D) density-independent factors.
E) habitat selection.