Answer:
l beg your pardon. We are all trying to learn here. Don't talk trash
While you didn't provide any following sources, healthy sources of energy for humans are usually considered to be different types of fruits and vegetables, lean meats, wholewheat grains, nuts, seeds, and healthy oils. All these constitute a healthy human diet and are a healthy source of energy.
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.
Hope helps!
I believe the muscle contracts
