Sorry for the other guy. He was rude. Here's the answer:
Animals excrete CO2 by cellular respiration. Since any living things besides plants can't break down CO2, it just gets put back into the environment. I hope I helped you :)
Answer:
The answer is A.
Explanation:
It can be regulated with negative feedback loops.
Answer: The cell membranes of a variety of different bacteria, fungi, animal and plant cells contain aquaporins through which water can flow more rapidly into and out of the cell than by diffusing through the phospholipid bilayer.
Explanation:
please always check over answers and hope this helps!!!
A Missing or incomplete X chromosome