The following process is due to a voluntary contraction and relaxation of muscles
A) Heart muscles pumping blood
B) Movement of legs during cycling
C) Respiration in bronchi of the lungs
D) Movement of food in alimentary canal
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A Joint Stock company is a voluntary association of individuals.
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Distinguish between smooth muscles and skeletal muscles.
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Write a short note on role of calcium ions in contraction and relaxation of muscles.
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Reflex action.
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