No bettas are fish not mammals. Bettas have a labyrinth organ which enables them to breathe air when there is not enough oxygen in the water to sustain them. Here are some things that separate bettas from mammals
Hair. Bettas have no hair or fur
Scales. Bettas have scales, mammals do not
Ability to breathe through gills. Mammals do not have gills, bettas do
Egg laying. Bettas lay eggs, mammals give birth to babies without shells that are able to breathe by themselves
No. It has a bony skeleton.
no. cartilaginous fishes are sharks and rays.
Jawless fish are cartilaginous, but they do not have jaws. Class Chondrichthyes, which contains most cartilaginous fish, like sharks, have powerful jaws.
Similar to Stingrays, skates are cartilaginous.
it is the cartilaginous fish.s
Both jawless fish and cartilaginous fish have skeletons made of cartilage.
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.
Sharks belong to cartilaginous fish. (Chondrichthyes)
Lizards are not bony or cartilaginous fish, they are reptiles.
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.
yes
No betta fish are carnivores.
other Betta fish and the bigger fish.