Why are environmentalists concerned about the introduction of genetically engineered trees?

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 are the student's observations and inferences before he starts his investigation?

Drag each label to the correct location on the chart. match the function to the type of tissue