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Which of the following statements is true?
A- Chemical digestion includes the physical breakdown of chunks of food.
B- Mechanical digestion begins in the mouth, and includes the tearing and grinding of food with teeth.
C- Mechanical digestion uses teeth to grind food and saliva to moisten the food
making it easier to chew.
D- Chemical digestion includes the chemical breakdown of food and mixing of the food particles with the help of the tongue
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Which of the following statements is true?
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