Which of the following correctly compares the structures of plant and animal cells? (2 points) a. both plant and animal cells have a large central vacuole where enzymes, nutrients, and waste are stored. b. both plant and animal cells have ribosomes which synthesize proteins for the cell. c. both plant and animal cells have a nucleus where cellular respiration takes place. d. both plant and animal cells have cell walls which transport substances into and out of the cell