Say no to drugs
Life and Death Situations
The beginning of the end
Hope I helped :)
The number of heartbeats per minute is known as the heart rate, while the volume of blood that is pumped by the ventricles with each heartbeat is the stroke volume.
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Typically, a lower heart rate at rest indicates more efficient heart function and sounder cardiovascular fitness.
Stroke volume depends on the amount of shortening that the myocardial fibers can reach when functioning against arterial pressure, The normal range of Stroke volume is 50 to 100 ml.
To learn more about cardiovascular fitness here
brainly.com/question/11176067
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Answer:
set up a health clinic to help treat waterborn diseses :)
Its got to be B because A is not right all the way and it doesn't provide feedback it would have to make the body do things.
