That would be mass.
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Answer:
B Physical separation of populations prevents interbreeding and mixing of gene pools.
Explanation:
Geographic isolation means two populations are unable to reproduce with one another. This means that over time, the variation in the gene pool will be different for one group compared to the other, and the species will genetically diverge from one another. resulting in speciation.
If given a chance to advice Mr. Smith, I would recommend him
to minimize going out in the sun when it is at the peak of the morning but if
not possible since he works under the sun, it would be good to put on sunblock
with a highest SPF and use precautionary measures like using hats and wearing
long sleeve to protect also the skin. More
water to hydrate, and vitamins for skin protection.
A person can only show a recessive trait if both of their parents carried at least one copy of each of the recessive allele. The parents do not need to show the trait, as one copy is not enough to reveal it, but they must both carry it.
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