Answer:
the ratio of the surface area to the volume is 1:2
Nitrogen fixation, N2 --> NH3+, is not something that plants to by themselves but some plants have bacteria that does this. I believe that pea plants have these, but I'm not 100% sure.
I think you should feed your hedgehog dry food
The answer is C.<span>The shell protects the crab from predators</span>