Question

What human body systems do you use to swim?

Answer 1

Skeletal, Muscular, Respiratory and Circulatory

Explanation:

Skeletal-because you are moving your bones in different parts of the body in some style of swimming.
Muscular-because you are swimming fast or slow, you are contracting and expanding the muscles on your arm, leg and body.
Respiratory and Circulatory-because you need to breathe!!