What is the average number of heartbeats per second?
A. 2/3 per second
B. 3 beats per second
C. 1 1/2 per second
D. 2 beats per second
1 answer
The average number of heartbeats per second is D. 2 beats per second
A. 2/3 per second
B. 3 beats per second
C. 1 1/2 per second
D. 2 beats per second
1 answer