Which macromolecule has a basic unit that is composed of phosphate, a sugar ring, and one of five different bases?

Which organelles are involved in energy conversion

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

What is the key to the recognition of codominance?