It stands every where because humans are every where
Answer: The second question answer: Sympathetic nervous system.
Explanation: The sympathetic nervous system directs the body's rapid involuntary response to dangerous or stressful situations. A flash flood of hormones boosts the body's alertness and heart rate, sending extra blood to the muscles
Answer:
Increases bone strength and density. Anaerobic activity — like resistance training — can increase the strength and density of your bones
