What is an advantage of using totipotent cells instead of pluripotent cells for medical treatments? a. totipotent cells take a long time to mature. b. totipotent cells are easier to find in the human body. c. totipotent cells are the most common type of adult cells. d. totipotent cells can differentiate into more types of cells.

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