Question

Explain different ways by which activity of the heart is regulated.​

Answer 1

The cardiac cycle is a normal activity of the human heart and is regulated automatically by the nodal tissues- sinoatrial node (SA node) and atrioventricular node (AV node). The variation in the cardiac cycle results in an increase or decrease in the cardiac output.

Answer 2

It is non terminating and repeating decimal. for a no. To end with zero it should be in the form of2^n and 5^m but in this digit 3 ...