Answer:
Homologous traits.
Explanation:
I definately do not believe in the idea of homologous OR analogous traits, however, I <em>do</em> want to help you out and I <em>can</em> tell you what your <em>textbook</em> says: A homologous trait is any characteristic which is derived by evolution from a common ancestor.
Answer:
To replace worn out or damaged cells
I believe it is B.) a system of interacting subsystems or A.) An indivisible unit that is part of the solar system.
Atoms can be further divided into protons,neutroms and electrons
