The cockatoo is a bird, so it is in the vertebrate class Aves.
YesYes. chameleons are in fact vertebrates who belong to the Class Chordate (vertebrates), Reptile Class.
Mammals
Osteichthyes is the class of vertebrates that has a swim bladder. It helps with their boyancy to help them move up and down in the water.
Fish
Jellies are invertebrates.
vertebrates and inner to mammals
Vertebrates.
Penguins are birds, so they belong to the vertebrate class Aves.
Clownfish are in the phylum chordata and the subphylum vertebrates, but I can't figure out what class they are in.
Reptilia
Mammalia
No, they are reptiles, a completely different class of vertebrates