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Which statement correctly defines digestion

1.digestion is mixing food with Silva, which is when Mechanical digestion starts.
2.digestion is chewing food, which is a means of chemical digestion.
3.digestion is a reversible process due to mechanical digestion.
4.digestion is the process of breaking down food into smaller molecules


Sagot :

Answer: 4

Explanation: digestion is the process of breaking down food by mechanical and enzymatic action in the alimentary canal into substances that can be used by the body.

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