The process in which oxygen enters the bloodstream through the alveolus and carbon dioxide exits the bloodstream also through the same alveolus to be exhaled.
external respiration
The actual sites of gas exchange within the lungs are the alvioli.
The gas exchange that takes place in the lungs are carbon dioxide and oxygen.
The efficiency of gas exchange in the lungs of vertebrates is greater because it increases the lungs' internal surface area.
via their lungs
gaseous exchange
The gas exchange that takes place in the lungs are carbon dioxide and oxygen.
The actual air exchange takes place in the alveoli of the lungs
suffocation
alveoli
Gas exchange.
lungs
greatest area for gas exchange in the lungs is provided by Whoever wrote the above answer is a dick head. Try ALVEOLI.