Answer:
I think the awnser is D. Hope it helps
The answer is B. they embody the idea of descent with modification.
So they can breatheso they can breatheso they can breathe<span>so they can breathe
</span>
Compound- a new substance formed by the combination of two or more different atoms
Energy Level- area that electrons are found around an atomic nucleus
Element- a substance consisting of only one type of atom
Molecule- the smallest complete form of a compound or diatomic gas