contestada

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?

Respuesta :

Diatonic254

The following choices are given;

A.Her title is accurate because two opposite extremes are favored.

B.Her title is accurate because one extreme is favored.

C.She should change her title because she is observing stabilizing selection.

D.She should change her title because selection cannot be observed.


The answer is; C

Since the whole population does not shift towards the extreme trait (which in this case is insect-eating) then the section is not directional. Rather, the selection is stabilizing because the selection does not favor a particular extreme trait but tend to shift the who population towards the mean (eating insects and berries).