Cartilaginous fish have entirely cartilaginous endoskeletons, meaning their skeletons are made from cartilage. They also have strong jaws, paired appendages, well-developed sense organs, and hunt using a system known as the lateral-line system, which uses vibrations to recognize prey. They can have placoid scales or be naked, and they do not have a swim bladder. They have a dorsal nerve cord that leads to a distinct brain, and they have a notochord.
Osteichthyes is a class of fish that are composed of a skeleton bone and cartilage.
Bony fish=osteichthyes.
Includes: salmon, bass, halibut, and any other fish with scales and calcium bones (bones like us people)
1) They spawn rather than mate
2) They have a wide variety in their diet
3) Two chambered heart
4) Skin that contains scales
bilateral symmetry
placoid scales
Bilateral symmetry
Bilateral.
radial symmetry
There are many animals that have the same type of symmetry as the letter M. A frog for example has this.
bilateral
scales
The reproduction among organisms in Osteichthyes varies greatly, but is all sexual reproduction with separate sexes.
One type of symmetry is rotation. The second type of symmetry is translation. The third type of symmetry is reflection.
Members of the class Osteichthyes, which includes bony fish, have an endoskeleton made primarily of bone. This type of skeleton provides structural support and protection for the internal organs. It also allows for flexibility and movement in water.
Bilateral Symmetry
Bilateral symmetry
Arial symmetry
Bilateral symmetry.
Bilateral Symmetry
Arial symmetry
Bilateral symmetry.
Radial Symmetry