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Agnathans are the jawless fish. They are usually fairly small (a few centimeters in length.) They consist of lancelets and tunicates. They have a notochord which is like a backbone, but it is more flexible than bone. Tunicates are enveloped by a tough tunic around their bodies. Other than that, they have no other bones.
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How is the skeleton of a shark to the skeleton of a jawless fish?
Sharks and jawless fish have cartilaginous skeletons, meaning their skeletons are comprised of cartilage.
Which type-of-skeleton does a jawless-fish have?
Jawless fish have cartilaginous skeletons, meaning their skeletons are made up of cartilage.
Are bony fish extinct?
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
What kind of fish are most ancient?
Jawless Entelognathus primordialis is the most ancient fish.
What do jawless fish look like?
Jawless fish have slim, eel-like bodies without scales. They have median fins but no paired appendages. They have no jaws, so they generally resemble tubes. Hagfish and lampreys are examples of jawless fish.
What is the skeleton of a jaw less fish made of?
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.
What is the difference bony fish and cartilaginous and jawless fish?
Ray-finned fish have "true" bone skeletons, where as the cartlaginous fish have...cartilage instead of bone as their skeletons.
What are the charaictics of a jawless fish?
Jawless fish have a cartilaginous skeleton and a sleek, eel-like body with naked skin. They do not have paired appendages or jaws. They have a dorsal nerve cord that leads to a distinct brain. Median fins are present.
How is the skeleton of a shark similar to the skeleton of a jawless fish?
they both have lateral line for sensing.lateral line system- sense organ that enables the fish to detect movement and vibration in the surounding water.;>carmae
Is a clown fish a jawless fish?
Clown fish do have jaws, so they are not a jawless fish.
What kind of fish is a lampery?
The Lamprey is an eel-like shaped, jawless fish of the order Petromyzontiformes.
Jawless fishes have a skeleton made of?
Bones
