What are the seven classes of vertebrates?

Answer by  mtlady1943 (144)

The seven classes of vertebrates are: Jawless fish, birds, amphibians, rays and sharks, mammals, reptiles, and bony fish. All vertebrates have a backbone that surrounds their spinal cord. They also have a well developed brain, a pair of eyes, a circulatory system with a heart, a pharynx, and a mouth with muscles.

Answer by  Annap4 (31)

The first class are mammals; humans are in this category, along with rodents, and all animals. Then come the birds, followed by reptiles such as snakes. The amphibians such as frogs make up a fourth class and the remaining three are all fish types, bony fish is one, fish with cartilage and then finally fish without scales.

Answer by  Aubrey (356)

The first of the 3 classes of vertebrates are fish. The names for these classes are Agnatha, Chondrichthyes and Osteichthyes. Animals belong to the class Amphibia. Reptiles belong to the class Reptilia. All birds belong to class Aves. The last class is Mammalia which is humans, dogs, cats, etc.

Answer by  jtpaag (473)

Seven living classes of vertebrates: Agnatha (jawless fish, no scales), Chondrichthyes (vertebrates with cartilage but no bone), Osteichtyes (bony fish), Amphibia (live both on land and in water), Reptilia (air-breathers, skin covered in scales or scutes), Aves (all birds), and Mammalia (air-breathers, give live birth, feed offspring by mammary glands).