The average adult heartbeat is:
A) 50–80.
B) 60–90.
C) 90–110.
D) 100–125.
B
Explanation:
A) A heartbeat as low as 50 can be seen in athletes, but not most adults.
B) Correct.
C) A heartbeat between 90 and 110 is high for an adult.
D) A heartbeat between 100 and 125 is tachycardia.
Health & Biomechanics
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