The answer is : Skill related fitness factors are essential for success in sport. These are: Agility - the ability to change the position of the body quickly and with control.
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It helps by you understanding what you need to pepare for life's greatest mysterys
The answer is B: fat gives your body energy to function, while muscle mass is used only to perform strenuous activity. This option is only correct because the statement includes the words, "muscle mass." If it was only "muscle," then it would be wrong.
No, it's because we need to breathe. Your body needs oxygen. Air pressure has little to nothing to do with it as far as I know.