There are two kinds of digestion: mechanical and chemical. Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells.
Hi !
Answer:
What additional consideration would help Alan manage his weight?
<em>Alan should reduce portion sizes.</em>
First one is D. I think because, and then, also this and that. then
Answer: Ok this is not a question
But thanks for the advice! =)