Differentiate the following activities on the basis of voluntary or involuntary muscles.

(a) Jumping of frog

(b) Pumping of the heart

(c) Writing with hand

(d) Movement of chocolate in your intestine

(a) Jumping of frog is the activity of voluntary muscles as it is controlled by skeletal muscles

(b) Pumping of heart is involuntary, i.e., it is controlled by cardiac muscles

(c) Writing with hand is voluntary muscles action

(d) Movement of chocolate in your intestine is involuntary muscles controlled by smooth muscles

Note- Voluntary muscles are the ones that are under the control of central nervous system and involuntary are not under the control of central nervous system.