Yes, jawless fish have skeletons, but their skeletons are not made up of bone. Instead, their skeletons are cartilaginous, meaning their skeletons are made up of cartilage.
Sharks are cartilaginous fish. The term "cartilaginous fish" means that the structure of the animal's body is formed of cartilage, instead of bone. A shark does not have one bone in it's body. It's skeleton is made up of cartilage. Cartilage is a tough material, like the material that shaped your ear.
Sharks are a type of cartilaginous fish, that is their skeleton is made of cartilage rather than bone. They belong to the vertebrate subphylum of chondrichthyes.
No fish don't have a skeleton on the out side. On the out side its just skin.
Yes
goldfishes
Yes, jawless fish have skeletons, but their skeletons are not made up of bone. Instead, their skeletons are cartilaginous, meaning their skeletons are made up of cartilage.
yes
No bony fish are not extinct. Bony fish are fish with a bone skeleton unlike Cartilaginous fish which heave a cartilage skeleton and jawless fish which don't have a skeleton. -Erin 11
Ray-finned fish have "true" bone skeletons, where as the cartlaginous fish have...cartilage instead of bone as their skeletons.
These are generally called "cartilaginous fish." Their skeleton is made of cartilage (that firm but wiggly structure inside your earlobe and nose) instead of bone. Examples include sharks and sting rays.
The taxonomic classification of fish that have hard, bony skeletons is teleosts.
Most "regular" fish, such as the angelfish, have a skeleton made of bone (class osteichthyes, I think). Fish such as sharks, skates, and rays have a skeleton made of cartilage (class chondrichthyes). Even bony fish, though, such as your angelfish, have some cartilage for flexibility. I believe that the baby bony fish, like a human fetus, has pure cartilage until the bone forms. DL
No they are cartilaginous fish, meaning that they have cartilage instead of bones for their skeleton.
bone
A bony fish is a fish that has a skeleton made of bone, with less cartilage than a cartilaginous fish. All bony fish can breathe both salt and fresh water. A good example of that is the Pacific salmon.
Cartilage