Question

multiple choice question
lungs present in some vertebrates allow
digestion of larger organisms.
exchange of gases with air.
exchange of gases with water.
digestion of organisms by filter feeding.

Explanation:

Lungs are respiratory organs. Their main function is gas exchange. In vertebrates with lungs, the gas exchange occurs with air (not water as in gills). Digestion is related to digestive organs, not lungs. Filter - feeding is a method of obtaining food (related to feeding structures, not lungs).

Answer:

exchange of gases with air.