abdominal cavity
Diaphragm seperates the respiratory system and the digestive system.
The structures in the lungs enable the lungs to exchange oxygen for carbon dioxide in the blood. The structure are also designed to help the lung protect themselves from irritants.
the air goes through the pharnyx then the trachea and into the lungs
The diaphragm
The trachea.
Reptiles breathe by means of their lungs. Their respiratory system is similar to ours in structure.
The structure in the lungs that contains the thinnest epithelium is the alveoli. Alveoli are air sacs where the exchange of gases takes place.
In cells with a cell wall plates forms and seperates the new cells which animal cels can not do.
The lungs is response for discovering the structure of D N A
Structure 4
alveoli
Lungs