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21-12-2018
Health

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Which of the following is the first step in respiration?
Question 6 options:

Carbon dioxide passes from the blood to the lungs.

Carbon dioxide passes into capillaries to the blood.

Oxygen passes into capillaries to the blood.

Oxygen is taken into the lungs.

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21-12-2018

D.You need to get oxygen in your lungs in order for the rest to happen

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