ke5nGieizzwgabyby ke5nGieizzwgabyby

07-03-2016
Biology

contestada

The primary purpose of the pulmonary system is to
a. prevent waste products from entering the heart
b. provide a location for the exchange of gases.
c. increase blood flow to the heart
d. increase the amount of carbon dioxide in the blood

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celest01 celest01

07-03-2016

the exchanges of gases between the environmental air and the blood

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