Answer:
It should be c that would be my guess
I believe that the answer is D the reason I say this is because the climax is "the final stage in a succession in a given environment, at which a plant community reaches a state of equilibrium."
Explanation:
It's C
B
the tendency of the body to maintain inner balance despite changes in external conditions
Carbon Dioxide
google plus proof below I guess
<em><u>please mark brainliest</u></em>