A population of rock pocket mice varies in color due to genetic differences – so

Question

A population of rock pocket mice varies in color due to genetic differences – some are light colored and some are very dark. The population lives on dark lava rock and are preyed upon by owls. Light colored mice are easier for the owls to see. The owl population in the area increases in number. Based on this information, predict if, and if so, how the rock pocket mouse population will change over time.

1. The percentage of dark and light mice in the population will show little change over time. 2. The percentage of dark mice will increase in the population, but mice with light fur will not be completely eliminated. 3. The percentage of light mice will increase in the population. 4. Light mice will develop mutations that darken their fur so they are better able to survive and reproduce.

Explanation / Answer

Light mice will develop mutations that darken their fur so they are better able to survive and reproduce.

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