What is true about the structure or function of the plasma membrane? A. The double layer prevents anything from entering the cell.

B. Hydrophilic molecules attract the water the cell requires.

C. The processes of endocytosis and exocytosis occur here.

D. It is made entirely of integral proteins.

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food