Answer:
because they can do some things and harm you
Explanation:
There is loads of choices so I could not really tell what the best one is. Although I wouldn't know because I'm a guy so I cant really tell what the best one is. I did look that question up and loads showed up on the right of my screen.
Sorry
A. A Professional who ensures that accurate information is maintained about all types of cancer
Answer:
The rate at which the motor neurons action potential are acting using more and larger motor units embed over the neurons that'll ultimately trigger the contraction of more muscle fibers according to different kinds of load.