Sharks get around without an operculum due to the fact that they instead have branchial flaps. The branchial flaps allow the shark to lay on the sea floor and still "breath" without taking in sand.
No, sharks do not have an operculum. Opercula are bony plates that cover the gills of bony fish to help with breathing, but sharks breathe through gill slits located on the sides of their bodies.
Jawless fish are cartilaginous, but they do not have jaws. Class Chondrichthyes, which contains most cartilaginous fish, like sharks, have powerful jaws.
The operculum
This is called the operculum
The flap of tissue that covers a bony fish gill is the bony operculum.
An operculum is a small piece of gum that is covering part of a tooth, usually a wisdom tooth, which has still not erupted fully. If that tooth doesn't erupt further more, the operculum can remain there and be easily infected because food can gather under it and it is very hard to clean. Sometimes a dentist can do an operculectomy, where he removes that small piece of gum to uncover the tooth, only if that tooth is not impacted. Another instance of an operculum is a body part on a fish that is the outside structure of the gills.
The fin located behind the operculum on a perch fish is the Pectural Fins (paired).
Bony fish (Class: Osteichthyes) have: 1. a bony skeleton 2. a swim bladder 3. a gill flap or cover (the operculum)
Question is having a grammatical mistake i.e. there should be shark in place of "sharks".
Sharks don't "go" anywhere. There are some sharks in the waters around Spain.
Yes, there are still plenty of Sharks around.
No, agnatha, which includes jawless fish like lampreys and hagfish, do not have an operculum. Instead of a bony cover over their gills, they typically have a series of openings that lead directly to the gill structures. This distinguishes them from jawed fish, which possess an operculum for protection and movement of water over the gills.