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Which of the following is the first step in respiration?

A. Oxygen passes into capillaries to the blood.
B. Oxygen is taken into the lungs.
C. Carbon dioxide passes into capillaries to the blood.
D. Carbon dioxide passes from the blood to the lungs.

Respuesta :

Doctorflame11
I think the Answer is B: Oxygen is taken into the lungs.
I will give you a link in the comments that might help you. :)

Nav8345
C I think not sure 100%

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