Warming up helps get your blood flowing to the muscles
I believe the answer you are looking for is the excretory system.
Answer:
D.Extroversion
Explanation:
Extroverts are often unfairly stereotyped as overly talkative or attention-seeking. In reality, they simply gain energy from engaging in social interaction. People who are high in extroversion need social stimulation to feel energized.
Answer:
The continuous nature of physical fitness concept means that physical fitness should be in a steady state always.
Explanation:
U r not Dumb >.<