Answer:the answer is the second
Because cell wall made up of most cellulose while cell membrane the outer if the animal cell
I've looked us up ever since you posted it the only thing I can come up with is letter A because it talks a lot about Mountain chains that talks a lot about the ocean floor and the Hawaiian stuff so try a
Ecosystems need producers because they are the start of the food chain.
Producers are consumed by first consumers, the second consumers and so on.
Cancer is basically a disease of uncontrolled cell division.
