Biology

The correct answer is: B.The Bottleneck Effect.

Explanation:

The bottleneck effect refers to a significant reduction in genetic diversity within a population due to a dramatic decrease in its size, often caused by a catastrophic event such as a natural disaster, disease, or overhunting. This reduction in population size means that only a small number of individuals contribute to the gene pool, leading to less genetic diversity and potentially altering the population's genetic makeup.

The other terms refer to different concepts:

A.The Founder Effect: This occurs when a small group of individuals est...