One multicellular organism is a cube. Each of its sides is 3 cm long. Each of its cells is 1 cm3. How many cells does it have? If each side doubles in length, how many cells will it then have?

Witch type of microscope is used to view very small cell components like proteins and dna?

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

Which of the following is a common response to cell signaling?