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12:54 Ch 22 VIII - Properties of Gases Ch 22 VIII - Properties of Gases	Ch 22 VIII - Properties of Gases Ch 22 objective 22. oxygen gas carbon dioxide pressure liquid law plasma temperature alveoli concentration gradient air lungs body sugar atmosphere gases tea mixture From Ashlee Tietje 6 plays 0
18:00 Ch 22 V - Pulmonary Ventilation Ch 22 V - Pulmonary Ventilation	Ch 22 V - Pulmonary Ventilation Ch 22 objectives 15-18. pressure volume lungs air resistance water pig pepper gas inspiration surfactant change expiration cavity muscles equation alveoli constriction increases gases From Ashlee Tietje 1 plays 0

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