The circulation system works with the digestive as well as the respiratory <span>system.
</span>
Answer:
Yes
Explanation:
You never know or expect someone to just drop to the floor. If someone like your mom, or father, whoever falls and can't breathe, and you know how to treat them in some sort of fashion, then you might save their lives. Rather than not knowing anything at all and risking the death of a loved one, or even someone you don't even know.
