The process of breathing involves two stages. They are:

True

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False

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Ingestion and Egestion

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Expiration and Ventilation

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Solution

The correct option is A True
Breathing involves two stages -- inspiration/inhalation and expiration/exhalation. Inspiration is a stage where atmospheric air is drawn in and expiration is the stage where the alveolar air is released out. The movement of air into and out of the lungs is carried out by creating a pressure gradient between the lungs and the atmosphere.

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