chordates

Cards (7)

  • class Agnatha - Jawless
  • Class chondricthyes - Jawed fish, cartilaginous fish
  • class osteichthyes - protrusible jaws, bony fish
  • class amphibia - tetrapods, they are ectothermic
  • class reptilia - amniotes
  • class aves - flying vertebrates, they are endothermic
  • class mammalia - gives birth to live young; characterised by the presence of milk-producing mammary glands for feeding their young