Need help on my biology i put stars to my answer?

Most of your stars are incorrect. Keep working at it. For example, #32--how would chemical digestion INCREASE surface area??? They two aren't even related. Think: if you wanted to say, use more cloth in curtains, how would you get more cloth within a certain window length (increasing the surface area essentially)..... #27--you have hair--does it make mucus??? Is there mucus all over your head???? Google rattle snakes or read about them in wikipedia for the answer to that one.