What are heart beat and pulse rate?

What is heart rate ?

What is pulse rate? What does low heart beat indicates?

After fast running, man has fast heart beat, slow pulse and shallow breathing, in such conditions he has

Heart beat is accelerated by

Heart beats are accelerated by

The heart of frog beats at the rate of

(a) What is mean tby 'heart beat' ? What is the usual heart beat rate at rest ? (b) What cahnge occurs in heart beats if a person runs for a while ? Why ?