How does the digestive system help with water input and water output in the body?How does the respiratory system help with water input and water output in the body?

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Answer 1 · 2018-07-24T02:12:54

The digestive system helps you swallow water (and food), and transports the waste to the urinary system.

I'm not sure what the respiratory system has to do with water (other than the body it's in, and water vapor). Sorry.