Biology, asked by victoria8164, 7 months ago

please answer my question
it's urgent please

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Answered by kalpana2269

Answer:

(a) It's not the ECG of a normal healthy person...

(b) QRS complex represents ventricular depolarisation.

(e) An ECG( electrocardiogram) records the electrical activity of the heart at rest. It provides information about heart rate and rhythm. It is widely useful in investigation in medicine. It is uesd for diagnosis of cardiac disorders, generalized disorders that affect the body.

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