In humans, eye color and hair color are controlled by _[blank]_. a)simple dominance b)multiple alleles c)incomplete dominance d)polygenic inheritance

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

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?