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Cellular Respiration

Across
Forgotten about Asthma drug...2
Energy requiring active process of breathing...1
Percentage of atmospheric oxygen...2
By product gas of aerobic metabolism...2
Primary gas used for aerobic respiration...1
Passive process of breathing....1
Upper airway obstruction noise...1
Down
Lower end of normal Capnography PCO2....2
Two divisions of the airway...3
Terminal end of the lower airway...1
Ventilation device...1
What the O2 sticks to...1