Cells in the body experience changes with aging. as cells age they tend to become and as the body ages it tends to have
a. larger; more cells dividing
b. smaller; more cells dividing
c. larger; fewer cells dividing
d. smaller; fewer cells dividing

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

hope this

tobey

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies