How have the historic levels of melanin in human populations changed due to migration? (1 point) Responses 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. 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. 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. 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 toward the equator. This is because melanin helps protect against the harmful effects of ultraviolet radiation from the sun, which is more intense closer to the equator. As a result, individuals with more melanin were more likely to survive and reproduce in these regions, leading to an increase in the prevalence of darker skin tones in populations closer to the equator. Conversely, populations that migrated away from the equator to regions with less intense sunlight had less need for high levels of melanin, leading to a decrease in the prevalence of darker skin tones in these populations.
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Humans that produced more melanin became more common as populations migrated toward the equator.
