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The major function of the respiratory system is to:
a. provide oxygen to the body and eliminate carbon dioxide from the body.
b. cleanse the body of toxins, poisons, and harmful chemicals.
c. maintain the digestive system of the body so that it can continue to operate.
d. give the heart the energy it needs to circulate blood.

Respuesta :

a. the respiratory system involves the lungs and airway, that is bringing the oxygen in and releasing the carbon dioxide

Answer:a. provide oxygen to the body and eliminate carbon dioxide from the body.

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