Short Answer
While sitting in front of the TV, the average person?s heart rate is about 70 beats per minute because the nervous system slows the heart down from the approximately 100 beats per minute that the pacemaker, the_________ node, sets.
Correct Answer:

Verified
Correct Answer:
Verified
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Q25: The aorta<br>A) is a major vein.<br>B) connects
Q26: How do lymphatic capillaries differ from blood
Q27: The human heart contains cells that do
Q28: The average red blood cell lives for
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