Mountains Also Have an Unmatched Power to Drive Human Evolution

question 27

Multiple Choice

Mountains also have an unmatched power to drive human evolution.Starting tens of thousands of years ago,people moved to high altitudes,and there they experienced natural selection that has reworked their biology.In Tibet,for example,people have broader arteries and capillaries.In the Andes,they can dissolve more oxygen into their blood.These different traits of people who live in high altitudes illustrate

• A)stabilizing evolution.
• B)sexual selection.
• C)adaptive evolution.
• D)acclimatization.

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