Explain why improving cardiorespiratory fitness and muscular strength and endurance are considered good strategies for improving body composition

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)

Small intestine because that is the organ which absorbs nutrients

Answerbasal cell carcinoma;