The answer would be D. The definition of a homologous structure is an organ or body part that appears in different animals and is similar in structure and location, but doesn't necessarily share the same purpose. The birds and rabbits have similar bones in their forelimbs, but one uses them to run and other uses them to fly.
Answer:
Explanation:
Option D magma is the correct answer
It is not it something like sand because it would keep the fossil preserved.
Answer:
one which is able to express itself outwardly in the presence of a recessive allele
Explanation: