Documents 20.2: The Respiratory System: the exchange of gases

20.2: The Respiratory System: the exchange of gases Section Objectives: Identify the structures involved in external respiration. Contrast external and cellular respiration…

Documents 20.2: The Respiratory System: the exchange of gasesThe Respiratory System: the exchange of gases...

20.2: The Respiratory System: the exchange of gases Section Objectives: Identify the structures involved in external respiration. Contrast external and cellular respiration…