Answer:
It could not exist without bacteria.
C) lipids contain more energy than carbohydrates because they contain more carbon to hydrogen bonds to release energy when broken
Answer:
preventing viruses from replicating
Explanation:
Answer: A: It becomes inactive.
Explanation: Pepsin works best at a pH of 2. And as the stomach has a very acidic condition, pepsin works well. But in the small intestine, the pH is about 8, which is too high for pepsin to function. Therefore, pepsin gets denatured in the small intestine.
