21 is the answer
I hope it is I think so
Answer:
the temperature rise becoming a fever that are caused by chemicals called pyrogen falling the bloodstream to fight off infections
B) it helps you serve others which makes you feel good
<span>The correct answer is true; insufficient flexibility does indeed increase an athlete's risk of an injury. This is because a less flexible muscle is more likely to be pulled or torn by movement than one that is able to be moved in a greater range of motion. Thus, it is important for athletes to work of their flexibility.</span>
He believed that disease was caused by physical and environmental factors that could be studied.
