Suggest why an MRSA infection may have to be treated with many different antibiotics

Draw the structure of dna nucleotide with adenine as nitrogenous base

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

How does secondary succession differ from primary succession?