Q

Which activities involve voluntary muscles? A. Jumping of a frog; B. Movement of food in the stomach; C. Pumping of the heart; D. Writing by hand.

RRB Group-D 11/10/2018 (Shift-II) 2018
✓ Answer: C A and D
Jumping and writing use skeletal muscles. Gastric movements use smooth muscle, and the heart uses cardiac muscle.
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