<span>The vestibule of the ear has two ssensory chambers: the utricle and the saccule, and each contin a macula with the receptors for static equilibrium.</span>
I believe the answer is D, Cells get energy by taking in nutrients from food. Correct me if I'm wrong.
It is important to understand because it's the way all cells reproduce (except sperm and egg cells, they do meiosis), and our cells are the essential parts of our whole being.