Define a cardiac cycle and the cardiac output.

Cardiac cycle is defined as the complete cycle of events in the heart from the beginning of one heart beat to the beginning of the next. It comprises three stages – atrial systole, ventricular systole, and complete cardiac diastole.
Cardiac output is defined as the amount of blood pumped out by the ventricles in a minute.

For more answers visit to website:
https://www.tiwariacademy.com/ncert-solutions/class-11/biology/chapter-18/