Question

To keep food from entering your lungs, the body's ____ system and ____ system must work together.

First blank space options- excretory, endocrine, digestive
Second blank space option- nervous, cardiovascular, respiratory

Answer 1

1 digestive system and 2 respiratory system

Explanation:

To keep food from entering your lungs, the body's digestive and respiratory systems must work together.

Answer 2

I think it's probably the Digestive (because it's food-related) and Respiratory (your lungs)