match of the plasma membrane of
cells and their organelles is evidence of
endosymbiosis.

a. cellular
b. biochemical
c. macromolecular
d. polar

Study the diagram of a desert food chain . what would most likely happen if the kangaroo rats were killed off and removed from the food chain ?

Why do carbohydrate molecules function so well as fuel for the body?

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.