WebFish have opercula over their gills to help them breathe and to protect these vulnerable soft spots. Snails have them to help keep unwanted guests out of their shells.

Operculum – Fishionary

WebThe counter-current exchange system makes gas exchange extremely efficient. Fish are able to extract a much higher proportion of oxygen from water than most animals can form air. This is essential for an aquatic lifestyle as water has a much lower oxygen content than air. Water helps to support the gills. Water flowing across the lamellae keeps ... WebThe fins of the fish are used for swimming but each one has a specific job. The dorsal fin is sometimes split into an anterior and posterior dorsal fin. Both are used to help the fish maintain its upright position in the water. The anal fin has the same function. fast loans with monthly payments bad credit

Fish Flashcards Quizlet

WebOperculum: The operculum is the bony flap that protects the gills from harm. It opens and closes to allow water to pass over the gills. It opens and closes to allow water to pass … WebOperculum: It is a bone series found in bony fish and chimeras that serves as a facial support structure and a protective covering for the gills; It opens and closes to allow … WebOperculum (fish) The operculum of a bony fish is the hard bony flap covering and protecting the gills. In most fish, the rear edge of the operculum roughly marks the … french ocean names