The answer is B, because layers mix better at the poles.
In evolutionary theory, adaptation is the biological mechanism by which organisms adjust to new environments
Answer: It's A. The sequence of DNA bases is different
Conjugation.
That should be one of your options.:)
Answer:
A plant's circulatory system is the way for a plant to get carbon dioxide and nutrients to every cell in its system. It is also the way for a plant to get rid of toxins and waste from its system
