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What are the differences between jaw less fish and cartilaginous fish?
Jawless fish and cartilaginous fish have cartilaginous skeletons, and bony fish have skeletons made from bone. Cartilaginous fish and bony fish both have jaws, paired appendages, and whole vertebrae, and jawless fish lack jaws, paired appendages, and often are without whole vertebrae. Cartilaginous fish can have scales or be naked, jawless fish are naked, and bony fish have scales. Bony fish have swim bladders, and cartilaginous fish do not. Jawless fish, cartilaginous fish, and bony fish all have fins, gills, and dorsal nerve cords that lead to a distinct brain. They all also have postanal tails and notochords.
An example of a cartilaginous fish?
Cartilaginous fish such as sharks, skates, and rays are vertebrates, whose internal skeleton is made entirely of cartilage and contains no ossified bone. Cartilaginous fish are also known as Chondrichthyes and have one or two dorsal fins, a caudal fin, an anal fin, and ventral fins which are supported by girdles of the internal skeleton.
Outer covering of jawless fish?
Jawless fish do not have scales, so their skin is naked. They also do not have jaws or paired appendages. They do, however, have a cartilaginous skeleton and a dorsal nerve cord that leads to a distinct brain.
What are denticles and how do they differ from the covering of bony fish?
Denticles are small tooth-like structures found on the skin of cartilaginous fish like sharks and rays. They differ from the bony fish's scales, which are hard, flat plates covering their bodies. Denticles help reduce drag in water and provide protection, while scales are more rigid and serve as a form of armor for bony fish.
Is a hagfish a cartilaginous fish?
Hagfish are cartilaginous, meaning their skeletons are made from cartilage. FALSE what the person just wrote is wrong. Hagfish are neither cartilaginous or bony fish. Although they have cartilage in their bodies, they belong to a third category called Jawless fish. Jawless, cartilaginous, and bony are the 3 types of fish.
Do Cartilaginous fish have scales?
Yes
What are the differences between jaw less fish and cartilaginous fish?
Jawless fish and cartilaginous fish have cartilaginous skeletons, and bony fish have skeletons made from bone. Cartilaginous fish and bony fish both have jaws, paired appendages, and whole vertebrae, and jawless fish lack jaws, paired appendages, and often are without whole vertebrae. Cartilaginous fish can have scales or be naked, jawless fish are naked, and bony fish have scales. Bony fish have swim bladders, and cartilaginous fish do not. Jawless fish, cartilaginous fish, and bony fish all have fins, gills, and dorsal nerve cords that lead to a distinct brain. They all also have postanal tails and notochords.
Difference between boney fish and cartilaginous fish?
Bony fish have endoskeletons made from bone, and cartilaginous fish have endoskeletons made from cartilage, the same material found in the noses of humans. Cartilaginous fish do not have swim bladders, but bony fish do. Cartilaginous fish have placoid scales or are naked, and bony fish have cycloid or ctenoid scales or are naked. Both organisms have jaws, paired appendages, vertebrae, gills, fin, notochords, and a dorsal nerve tail that leads to a distinct brain.
What does cartilaginous mean?
Cartilaginous fish have cartilaginous endoskeletons, meaning their skeletons are made from cartilage. Cartilaginous fish can also have placoid scales, or they are naked. Cartilaginous fish have gills, paired appendages, strong jaws, notochords, a dorsal nerve chord that leads to a distinct brain, and lack a swim bladder.
An example of a cartilaginous fish?
Cartilaginous fish such as sharks, skates, and rays are vertebrates, whose internal skeleton is made entirely of cartilage and contains no ossified bone. Cartilaginous fish are also known as Chondrichthyes and have one or two dorsal fins, a caudal fin, an anal fin, and ventral fins which are supported by girdles of the internal skeleton.
Do cartilaginous fish have operculum?
Jawless fish are cartilaginous, but they do not have jaws. Class Chondrichthyes, which contains most cartilaginous fish, like sharks, have powerful jaws.
Like jawless fish cartilaginous fish have sketetons made of?
Both jawless fish and cartilaginous fish have skeletons made of cartilage.
What is a cartilaginous?
They are fish with no bones, no swim bladder, no scales, and have 5 to 7 open gill slits. These fish include sharks, rays, etc.
The body covering of stingray?
A stingray is a cartilaginous fish related to sharks. The stinger is covered with a thin layer of skin. Its body covering blends in with its habitat and is a thick, rough, rubbery skin.
Is a tuna fish cartilaginous fish?
no. cartilaginous fishes are sharks and rays.
What group does a ray belong to?
A ray belongs to the group of cartilaginous fish, specifically in the subclass Elasmobranchii. Rays are closely related to sharks and share similar characteristics, such as a cartilaginous skeleton and placoid scales.
Do fish scales tessellate?
Fish scales do not tessellate, they overlap. Like most scales do.
