Apolar bear has a thick layer of fat under its skin. its body is covered with fur. it has adapted to a very cold climate. what would most likely happen to the polar bear if the climate changes and gets warmer? a)the polar bear will lose all its fur. b)nothing will happen to the polar bear. c)the polar bear will probably not survive. d)the polar bear will now live in warm places.

Agene with the original sequence of atgtt—tact underwent substitution mutation to form atatt—tact after a few generations. tact is a part of a muscle protein encoding region, and atgtt codes for a digestive enzyme. what will be the effect of this mutation? a. the production of muscle protein will be affected. b. the production of digestive enzymes will be affected. c. the production of both the protein and the enzyme will be affected. d. the production of neither the protein nor the enzyme will be affected.

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 situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box