Responses
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.
Predators only common to the polar regions meant darker humans were better camouflaged and had higher fitness.
Predators only common to the polar regions meant darker humans were better camouflaged and had higher fitness.
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.
Diseases common to the polar regions caused a decrease in melanin production.
1 answer
The correct response is:
Humans exposed to less UV light required less melanin to make more vitamin D for healthier bones.
As populations moved away from the equator, where UV light is more intense, the amount of melanin produced in the skin decreased. This is because less melanin allows for more efficient synthesis of vitamin D in conditions of lower UV exposure, which is important for bone health.
