The breathing cycle is rythmic whereas exchange of gases is a continuous process.comment
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The breathing cycle involves inhalation and exhalation of air due to alternate expansion and contraction of thoracic cavity. Thus it is a rhythmic process.
But exchange of gases is a continuous process as it takes place between the blood and each and every cell, by diffusion.
But exchange of gases is a continuous process as it takes place between the blood and each and every cell, by diffusion.
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