Smallpox was once endemic in india and africa, where there were low frequencies of the allele for type a blood. what did this su

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Makovka662 [10] · Answer 1 · 2024-02-15T07:44:23+03:00

That type of blood increased susceptibility to smallpox.

Which of the following best explains why, given the A allele's vulnerability to smallpox, natural selection did not eradicate it?

Diseases that the A type is not vulnerable to can affect other blood types.

Do you think that diseases can impact natural selection in any way?

A species will have a better chance of surviving than others if it has evolved tolerance to particular germs.

Why did people acquire dark skin?

People who lived in regions with strong sunlight evolved dark skin tones as a result of natural selection to guard against ultraviolet (UV) rays, primarily to prevent their bodies from folate depletion.
UV rays from the sun are what led to skin pigmentation during evolution.

Learn more about ultraviolet (UV) rays

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