A rabbit eats a piece of lettuce. After its digestive system breaks down the lettuce, the rabbit is able to use glucose molecules from lettuce to release energy. Where did the glucose in the lettuce come from?

According to the cell theory, which describes cells? a. all organisms are composed of multiple cells. b. all cells have the same structure and function. c. cells are found in everything on earth. d. living organisms are not created spontaneously