The organelle that is responsible for regulating what enters and leaves the cell is A.
There are no following answer choices so I suggest that they can produce more more fish. People can stop fishing for a period of time. People can stop fishing for that kind of fish. The states could put a limit on how many fish you can catch. They can put restrictions on the size. They can say the fish has to be longer than a certain amount of length.
I think the answer is renal medullae
