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Biology 20 Online
OpenStudy (anonymous):

Help!

OpenStudy (anonymous):

Which of these is the correct order through which oxygen enters the body? A. blood, alveoli, lungs, bronchi, bronchioles B. bronchi, lungs, bronchioles, alveoli, blood C. lungs, bronchi, bronchioles, alveoli, blood D. lungs, bronchi, bronchioles, blood, alveoli

OpenStudy (potatoes.ramu):

Option B! :)

OpenStudy (anonymous):

thanx!!! :)

OpenStudy (anonymous):

can you help me with another one?

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