3 years ago

What part of the digestive system first causes chemical changes to food?

Biology

2 answers:

zhannawk [14.2K]3 years ago

5 0

Answer:

b. saliva in the mouth

Explanation:

saliva contains enzymes that help break down food

valina [46]3 years ago

4 0

I think it would be a because even though saliva is also helping to break down enzymes, you need your teeth in order to first break apart the larger pieces. Hope this helps:)

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