The primary difficulty is the fact that we do not know all of the organisms that currently exist in the world along with those that existed in the past.
Answer:
the pheno type is the blue eyes whilst the genotype could possibly be for example AA or Aa. The phenotypes for the parents would be either AA or Aa
Explanation:
The answer is "<span>B: all the gray squirrels that live in a forest" </span>
It is a form of natural selection called sexual selection.