What is the relationship between the heart beat and the pulse?

Observe the table given below and analyse the questions. (i) What is the relation between weight of the body and weight of the heart of an animal? (ii) What is the relationship between weight of the heart and rate of heart beat?

What activities will you do to find relation between heart beat and pulse rate?

Note the relationship between the first two words and suggest a suitable word for the fourth place: Increase in heart beat : Sympathetic::Decrease in heart beat...... .

What is the reason for the heart beat?

Is there any relation between weight of the body and heart beat rate ?

Write a note on heart beat.

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