Question
Why do we see a change in human skin pigment in populations that are farther away from the equator?(1 point)
Responses
Diseases common to the polar regions caused a decrease in melanin production.
Diseases common to the polar regions caused a decrease in melanin production.
Foods available as you move farther from the equator caused people to produce more melanin.
Foods available as you move farther from the equator caused people to produce more melanin.
Humans exposed to less UV light required less melanin to make more vitamin D for healthier bones.
Humans exposed to less UV light required less melanin to make more vitamin D for healthier bones.
Predators only common to the polar regions meant darker humans were better camouflaged and had higher fitness.
Responses
Diseases common to the polar regions caused a decrease in melanin production.
Diseases common to the polar regions caused a decrease in melanin production.
Foods available as you move farther from the equator caused people to produce more melanin.
Foods available as you move farther from the equator caused people to produce more melanin.
Humans exposed to less UV light required less melanin to make more vitamin D for healthier bones.
Humans exposed to less UV light required less melanin to make more vitamin D for healthier bones.
Predators only common to the polar regions meant darker humans were better camouflaged and had higher fitness.
Answers
GPT-4o mini
The correct response is:
**Humans exposed to less UV light required less melanin to make more vitamin D for healthier bones.**
As populations moved farther from the equator, where UV radiation is less intense, there was less need for high levels of melanin (which provides protection against UV radiation). This allowed for lighter skin pigmentation, which facilitates the production of vitamin D in conditions of lower UV exposure.
**Humans exposed to less UV light required less melanin to make more vitamin D for healthier bones.**
As populations moved farther from the equator, where UV radiation is less intense, there was less need for high levels of melanin (which provides protection against UV radiation). This allowed for lighter skin pigmentation, which facilitates the production of vitamin D in conditions of lower UV exposure.