Answer:
that seams like a hard topic
Explanation:
The answer is skin
The first line of defence is your innate immune system. Level one of this system consists of physical barriers like your skin and the mucosal lining in your respiratory tract. The tears, sweat, saliva and mucous produced by the skin and mucosal lining are part of that physical barrier, too.
You would strengthen your leg muscles. it really depends on how big the laps are.
Answer:
Turning on the AED
Explanation:
It wouldn’t be of used if it wasn’t on that would be the first step.