How have the historic levels of melanin in human populations
changed due to migration? (1 point)
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 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 toward
the equator.