The first one would be A i believe, second one would be B and third is D
Answer:
Digestion
Explanation:
The breakdown of foods into forms that can be transported to cells and absorb into these cells(this process has two parts): Mechanical(breaks down large pieces of food into smaller ones) and Deglutition(swallowing).
During respiration, the energy within the bonds of glucose molecule is released in small amounts in a step-by-step enzyme-controlled reaction.
The answer is A: salt content