Question

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 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 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.

Answer 1

Humans that produced less melanin became more common as populations migrated away from the equator.

Reason: Lower UV at higher latitudes favored reduced melanin to allow sufficient vitamin D synthesis, while higher UV near the equator favored higher melanin for protection.