According to scientists, all of the bodies in the universe came from a rotating cloud of gases and dust about billion years ago.

O 3.5
O 2.5
O 4.5
O 1.2

Which list is in order from simplest to most complex? a bacteria - virus - plant - protist b protist - bacteria - virus - plant c virus - bacteria - plant - protist d virus - bacteria - protist - plant

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

Animals that have thick fur and ae able to store large amounts of body fat live where ?