Answer:
Mutations can create entirely new alleles in a population which changes the allele frequencies of a gene pool.
The answer to the given statement above would be TRUE. The digestion that happens in the stomach is just partial digestion so that it would be easier for the nutrient absorption to be done in the small intestine. It is in the intestines that digestion is completed. Hope this helps.
<span>(decreased variation in tail feather color because no form of the trait is advantageous) Due to the fact that the tail color is no longer a necessity, so it will eventually stop being needed and variation will decrease.</span>
