Answer:
b
Explanation:
It would be false. Even if you're a good athlete but have 0 motivation you won't win or even want to win.
When you flex or use a muscle, the <span>myofibrils slide together. Myofibrils refers to </span><span>any of the elongated contractile threads that is seen in striated muscle cells. When we stretch our muscle or use it in doing some exercises, our myofibrils are at the same time sliding.</span>
There important because some diseases cant be seen unless they test blood or pee, that type of test can give 100% if your sick or have an infection, there impotant in order to see if your pee is normal or not .
