In humans gene flow usually comes about through the actual migration of human populations, either voluntary or forced. Although gene flow does not change allele frequencies for a species as a whole, it can alter allele frequencies in local populations.
Hopefully this helps.
Answer:
box 4, because it has more atoms in the same amount of space
A.<span> Air pollution............................</span>
I don't know how to answer the true or false however it can take around 4 weeks in the peak of the summer climate.
Answer:
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