Fat is A back up source of energy to fuel your work out and carbohydrates are not available
Answer:
The human muscular system is the machinery that drives athletic performance. Among their functions, the more than 600 skeletal muscles generate skilled movements and produce energy for sport-specific competition. ... These contractions pull on the bones of the skeleton to cause movement.
Explanation:
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A. help keep joints flexible
Best answer: Recognize the warning signs
Explanation: Obviously not 1, 3 not the best because we all make mistakes, a person who once did crime can turn into a better person so #2 the the best answer!