Biology, 09.09.2020 20:01 alisharodriguez1
Heart rate is the speed of the heartbeat measured by the number of contractions of the heart per minute. The heart rate can vary according to the body's
physical needs, including the need to absorb oxygen and excrete carbon dioxide. Which of the following correctly identifies a factors relationship with
heart rate?
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Heart rate is the speed of the heartbeat measured by the number of contractions of the heart per min...
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