Pausha and her Dad are enjoying the benefits of being outside, and exploring many of the local waterways in their community. They have also increased their upper back and forearm strength. Pausha and her Dad have most likely been participating in: Kayaking

Martial Arts

Motocross Racing

Snorkeling

Can ppl. develop self esteem, decision making..

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)

1.controls blood flow2.controls oxygen flow3.carries oxygen rich blood to veins