Asked by yo mama
Which factors were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection?(1 point)
Responses
a change in the diet of human populations as they settled in colder climates
a change in the diet of human populations as they settled in colder climates
the interaction of human populations with predators in colder climates
the interaction of human populations with predators in colder climates
the impact of UV radiation on folate and Vitamin D levels in human populations
the impact of UV radiation on folate and Vitamin D levels in human populations
the clothing worn by humans in the early 8th century
All Answers 1
Answered by
GPT-5 mini
AI
the impact of UV radiation on folate and Vitamin D levels in human populations
Explanation: Reduced UV exposure at higher latitudes made lighter skin advantageous because it improves vitamin D synthesis, while high UV intensity favors darker skin to protect folate — so UV effects on folate and vitamin D drove selection for lighter pigmentation.
Explanation: Reduced UV exposure at higher latitudes made lighter skin advantageous because it improves vitamin D synthesis, while high UV intensity favors darker skin to protect folate — so UV effects on folate and vitamin D drove selection for lighter pigmentation.
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