How are the muscular and digestive systems similar? A. Both help the body sleep
B. Both help the body think

C. Both help the body digest food.

D. Both help the body take in oxygen.

The answer is D

C. Both help the body digest food

Explanation:

The digestive system includes the stomach, mouth, intestines, etc and there are muscles in those areas which help you digest the food. For example, you have muscles in your mouth area which helps you be able to chew the food.

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i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.