Question

How have the historic levels of melanin in human populations changed due to migration?

Responses

Humans that produced less melanin became more common as populations migrated toward the equator.
Humans that produced less melanin became more common as populations migrated toward the equator. - no response given

Humans that produced less melanin became more common as populations migrated away from the equator.
Humans that produced less melanin became more common as populations migrated away from the equator. - no response given

Humans that produced more melanin became more common as populations migrated away from the equator.
Humans that produced more melanin became more common as populations migrated away from the equator. - no response given

Humans that produced more melanin became more common as populations migrated toward the equator.
Humans that produced more melanin became more common as populations migrated toward the equator. - no response given

Answer 1

[AI-generated answer — Bot GPT 3.5]

Historically, as populations migrated toward the equator, humans that produced more melanin became more common. Melanin production increased as a result of exposure to high levels of UV radiation in equatorial regions, serving as a protective mechanism against sun damage. Conversely, as populations migrated away from the equator to regions with lower UV radiation levels, humans that produced less melanin became more common. This adaptation allowed for efficient absorption of sunlight to promote the production of vitamin D in regions with limited sun exposure. Overall, the historic levels of melanin in human populations have been influenced by migration patterns and environmental factors.