Nudge the ball; don’t kick it. The ball should never be more than a foot or two away from your feet. Describes what? Question options:

Trapping the ball

Bouncing the ball

Kicking the ball

Dribbling a soccer ball

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)

The answer is epidermis

Answer psychoneuroimmunology;