A student listed how different parts of the body work to aid in the digestion of food. Part of Body Action Teeth tear and crush food into small pleces so that food can be swaltowed. Sallva is mixed with food to make food particles softer and easier to swallow. Mouth Mouth Hydrochloric acid and enzymes help break down food molecules into smaller molecules. Stomach Which of the following is a chemical change that occurs to the food? O The reduction in size of food particles as food is chewed O The movement of food to the stomach after food is swallowed O The breakdown of molecules of food by enzymes and acid in the stomach O None of the above

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