The heart is the system’s pump and the blood vessels are like the delivery routes and it is a muscle. The pumps are the beat.
The heart is a muscle about the size of a fist and it is the muscle in the body that works the hardest.
The statement that the heart muscle rests only between beats is true.
Warming up helps get your blood flowing to the muscles
The answer is the first one, A!
All of these choices are correct for drinking sufficient
water will help the body get rid of the stone-forming chemicals such as calcium, oxalate,
urate, cysteine, xanthine, and phosphate. These stone-forming chemicals will
have less chance to settle and bond in your kidneys and urinary tract if you
are drinking enough water because your body will signal the brain for frequent
urination. Thus, eliminating higher concentrations of waste produces, including
substances that can form stones in the future.
