Question

a scientist wrote a paper titled \directional selection in action\ after observing a population of mice for 15 years. the mice typically preferred to eat berries, although a few would also eat insects. after a drought in year 3, the scientist observed that more mice were eating insects. by year 10, most of the mice in the population ate insects in addition to berries. which best describes her article? her title is accurate because two opposite extremes are favored. her title is accurate because one extreme is favored. she should change her title because she is observing stabilizing selection. she should change her title because she is observing disruptive selection.

Explanation:

Directional selection favors one extreme phenotype. In this case, the mice population shifted from mainly eating berries (one phenotype) to mostly eating insects (another extreme phenotype). Stabilizing selection favors the intermediate phenotype, and disruptive selection favors two extreme phenotypes. Since the description matches directional selection (one extreme favored), the title is accurate.

Answer:

Her title is accurate because one extreme is favored.