How have the historic levels of melanin in human populations changed due to migration? (1 point) Responses 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 toward the equator. 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 away from the equator. Humans that produced more melanin became more common as populations migrated away from the equator. Humans that produced less melanin became more common as populations migrated toward the equator.
1 answer
The correct response is: Humans that produced less melanin became more common as populations migrated away from the equator.
This is because populations that migrated to regions with lower UV radiation (further from the equator) tended to develop lighter skin, as less melanin is advantageous for the synthesis of vitamin D in conditions with less sunlight. Conversely, populations that migrated toward the equator developed more melanin to protect against the higher levels of UV radiation.
