Answer:
Chemical digestion involves the secretions of enzymes throughout your digestive tract. These enzymes break the chemical bonds that hold food particles together. This allows food to be broken down into small, digestible parts.
Explanation:
Magnet .................................
Rock moves outward, A crack forms, Magma pushes upward, Magma hardens
Answer: Tay-Sachs a disease caused by an absence of an enzyme that break down fatty substance causing damaged to nerve cells
