In my Biology Honors Class, they taught about gastric juice, or also known as (p H) which is formed by stomach glands, is very acidic and can seriously mess up enzyme trypsin functions. After all, enzymes are a type of catalyst that help break down food, which means that enzymes are a sort of digestive acid as well. Hope this helps!
Yes
None of them produce their own energy
Va graph will say that the amount of viruses taken it will 1000 viruses
Answer:
They don't reproduce independantly but have to invade other cells.
Explanation: