When air enters our nose, it passes through the ____. It passes through the ____ and then to the ____. Then the air continues to pass through the ____ down to the lungs. The lungs contain millions of ____. It is also the site of gas exchange between air and blood.

RESPIRATORY SYSTEM

Lisää

Tulostaulu

Visuaalinen tyyli

Vaihtoehdot

Vaihda mallia

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