7.13C: Natural and Artificial Selection

1. artificial, diverse, population

1. natural, desirable, environment

1. artificial, desirable, generation

1. natural, diverse, generation

1. By increasing the age of the cows that are bred

1. By choosing cows that are high milk producers

1. By limiting the number of offspring per cow

1. By choosing cows that can produce milk after eating the most food

The mice intentionally changed their fur color from white to gray to avoid predators.

Owls hunted more white mice because they preferred the taste, allowing gray mice to become more common.

White mice were more visible to owl predators, giving gray mice a survival advantage that increased their frequency in the population over time.

Humans selectively bred gray mice and removed white mice from the environment.