b)ATP is the important energy storing molecule produced in cellular repiration
a)ATP stores and releases energy
The best I think would be meters
I would assume that it would be A
It gives you a sign that digestion is having a hard time taking place.
C) Natural selection
When something happens in nature and something changes all of a sudden, the animals tend to adapt to what gives them more chances of survival. As a result, a large amount of the population would attempt to adapt in a way that helps them survive.