Question

Imagine that a biologist develops a strain of corn with a lower fat content by choosing low-fat variants and crossbreeding them over several generations. This is an example of:

Answer 1

Natural selection: The process of evolution in which the most fit organisms survive and are able to reproduce, thereby passing on their traits to their offspring.

As the biologist selected for low-fat variants of corn, they used natural selection to manipulate the gene pool of the population in order to produce a desired outcome.