In humans,the duration of a cardiac cycle is | vedclass

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(C) The cardiac cycle refers to the sequence of events that occur during one complete heartbeat.In a healthy human adult,the heart beats approximately

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(C) The cardiac cycle refers to the sequence of events that occur during one complete heartbeat.In a healthy human adult,the heart beats approximately $72$ times per minute.To calculate the duration of one cardiac cycle,we divide $60$ seconds by the heart rate ($72$ beats per minute).Duration $= 60 / 72 = 0.833$ seconds,which is approximately $0.8$ seconds.Therefore,the correct duration of a cardiac cycle is $0.8$ seconds.

In humans,the duration of a cardiac cycle is ......... seconds.

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