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Importance of Breathing - 1/2

Breathing is just one form that sends oxygen to different parts of the the body and depose carbon dioxide. Another important operation require the movement of blood by the circulatory system.

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Tags: Breathing

Uploaded by: ( Send Message ) on 23-04-2009. Dnatube suggest users to have interest in drug testing, mesothelioma, insurance, medical lawyers.

Duration: 0m 44s

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