Answer – A. Static Stretch
The type of stretch that is best suited as part of a cool down is static stress; dynamic stretch on the other hand is best included as part of a warm up. Regular stretch exercises help to improve flexibility, increases range of motion, and decreases the risk of injury.
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Well, I'm no expert but U can try baking soda and hydrogen peroxide... mix them up and then swish in your mouth. but dont do it 2 often, because those are both very acidic! Hope I helped
B is the answer to this question
O M G i just did that one on Plato
well anyway i think the answer was the the skin because any thing that invades the body is a threat to the immune system.