They are connected on the side closest to the head and overlap each other
On cartilaginous fish there are no scales. They have rough sand-paper like skin.
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.
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.
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.
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
Most probably, their scales is like our skin. They breathe through their gills not their scales.
Yes
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.
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.
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.
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.
Jawless fish are cartilaginous, but they do not have jaws. Class Chondrichthyes, which contains most cartilaginous fish, like sharks, have powerful jaws.
Both jawless fish and cartilaginous fish have skeletons made of cartilage.
Both jawless fish and cartilaginous fish have skeletons composed of cartilage and distinct brains. Also, some cartilaginous fish don't have scales, and all jawless fish don't have scales. Cartilaginous fish, however, have jaws, paired appendages, and a kind of vertebrae. Jawless fish do not have jaws, paired appendages, and often are without vertebrae.
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.
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.
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.
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