Your brain sends it signals telling it what you need
B. "the nameless grace/Which waves in every raven tress" is correct.
This could be mitosis or meiosis. Meiosis produces 4 daughter cells while mitosis produces 2 daughter cells. Mitosis is used for every cell except your sperm and egg cells, in which that would be meiosis.
Carbohydrates contain carbon, hydrogen, and oxygen. It can bond with other carbon atoms as well as other elements. hope this helps