The skin IS considered a organ as it is apart of the integementry system. And it is the largest organ in the body. The skin has a epidermal layer, a dermal layer, fatty tissue, and several other associated factors.
Lung diffusion is your ability to pass oxygen into the blood from the air sacs of the lungs, and pass carbon dioxide (CO2) back into the lungs from the blood.
Answer: The answer to your question would be 4-6 reps, 1 set.
C ........................................ because most athletes dont want to get fat unless your like the rock where he gets really fat but works out all day
