Answer:
That shark is trained by human
Sorry this is late: You didn't put the answer options, but I was on this question, so the correct answer is commensalism. Don't forget to put the answer options, or no one will understand it. Good luck with the rest of your work!
Moose would go unchecked and increase to a point and then decrease due to other limiting factors.
Kidney
Explanation:
The kidney is the body system that regulates the acid base balance of the blood.
