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The digestive system is critical to maintaining a healthy body because

A.
the digestive system helps make food taste better.

B.
the digestive system is the primary way the body obtains oxygen.

C.
the digestive system collects the nutrients needed by the body.

D.
the body expels all of its waste using the digestive system.

Respuesta :

The answer is D.

It is the most needed because if the waste of the body doesn't get removed then you will become very ill and possibly die.

Hope this helps! :) 
akamarko88
C. the digestive system collects the nutrients needed by the body.

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