Question

Name a fish which pharyngeal lung addition to the gills.

Answer 1

Answer:

one of the openings or clefts between the gill arches in vertebrates that breathe by gills through which water taken in at the mouth passes to the exterior and bathes the gills also : branchial cleft

in all cartileginious fishes such as shark and rays as well as primitive fish such as lempry and bony fishes have their gills over with operculam

in those fishes operculam is absent they do not have gill slits

Answer 2

Explanation:

Perfusion of water. Of extant lungfish, only the Australian lungfish can respire through its gills. In other species, the gills are too atrophied to allow for adequate gas exchange. When a lungfish is obtaining oxygen from its gills, its circulatory system is configured similarly to the common fish.