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Question

Question
What factors caused the correlation between the reduction in skin pigmentation in humans and migration of human populations away from the equator?(1 point)
Responses

The exposure of human populations to new sources of food common to the polar regions caused changes in physiology that resulted in the production of less melanin.
The exposure of human populations to new sources of food common to the polar regions caused changes in physiology that resulted in the production of less melanin.

The exposure of human populations to new diseases common to the polar regions interfered with melanin production causing lighter skin.
The exposure of human populations to new diseases common to the polar regions interfered with melanin production causing lighter skin.

The exposure of human populations to predators only common to the polar regions caused them to adapt by camouflaging better with the environment.
The exposure of human populations to predators only common to the polar regions caused them to adapt by camouflaging better with the environment.

The exposure of human populations to less UV light required a reduction in melanin to produce more vitamin D for healthier bones.
The exposure of human populations to less UV light required a reduction in melanin to produce more vitamin D for healthier bones.
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Answer 1

The correct response is:

The exposure of human populations to less UV light required a reduction in melanin to produce more vitamin D for healthier bones.

This explanation aligns with the understanding that as human populations migrated away from the equator, where UV light is more intense, they faced a reduced need for melanin, which provides protection against UV radiation. Lighter skin facilitates the production of vitamin D in conditions with lower UV exposure, which is important for bone health.