Which best describes the difference between chemical and mechanical digestion?
A.) Chemical digestion occurs only in the small intestine, mechanical digestion occurs in all digestive organs
B.) Chemical digestion involves physically breaking down food, mechanical digestion breaks the bonds in foods
C.) Chemical digestion occurs only when the body's Ph is acidic, mechanical digestion requires alkaline surroundings
D. ) Chemical digestion requires the use of enzymes, mechanical digestion does not involve the use of enzymes
