WILL GIVE BRAINLIEST!
Which of the following is an example of the respiratory and circulatory systems working together?


1. The blood flows through the kidneys, and waste products are removed.


2. The lungs take in air, and the blood carries oxygen to the body's cells.


3. The diaphragm flexes, and the lungs take in air.

Respuesta :

2. The lungs take in air, and the blood carries oxygen to the body's cells. is correct. 
1. isn't 
When you drink a lot of water the water flows through your kidneys and removes waste products If your blood did that then the waste products would be getting into your blood...
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