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Len [333]
3 years ago
15

A river separates two groups of mice, one black and the other all white. a beaver dam allows the mice to cross the river. over t

ime, many gray mice are born. the river is lined with light stones. gray mice are most visible to hawks that fly overhead and feed on mice. although many gray mice are born, not many live long enough to reproduce. what is this an example of?
Biology
2 answers:
strojnjashka [21]3 years ago
4 0
This is an example of disruptive selection.
Vesna [10]3 years ago
4 0

Answer:

Disruptive selection

Explanation:

Disruptive selection is a type of natural selection that occurs when the extreme phenotypes have increased survival fitness that the phenotypes with the intermediate trait. The disruptive selection favors the extreme phenotypes at the expanse of the intermediate phenotype.

In the given example, the intermediate phenotype (the gray mice) have lesser survival fitness as they are visible to predators. The disruptive selection does not favor gray mice and leads to the evolution of populations of black and white mice.  

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