Answer:
weak immune system
Explanation:
not getting enough sleep can slowly hurt the way your immune system fights off and protects germs
<span>Flexible joints are A. important to prevent athletic injury. It is quite important to stretch and warm up before exercising so as not to hurt yourself and your body and muscles. Flexibility is relevant for everyone, not just cross-training athletes. It doesn't occur naturally, you have to train to get there. It is important for everything, not just running. </span>
Answer:
Explanation: Some ways it could become safer is if thier acceleration towrds the subject was softened to where there are not two objects of great acceleration heading towards each other.
I would say c but I would have to read your text book to be able to answer it accurately
