By tar, I think you mean nicotine. (I Hope). It affects the nerve signals that regulate breathing.
Since it’s natural environment is very acidic, putting pepsin in a very alkaline environment would cause it to denature.
Answer:
Organisms that produce chemical energy for the rest of the environment are the ones that produce chemical energy for the environment
Explanation:
Source: Trust me Bro
I believe the answer is photosynthesis
