ANIMAL KINGDOM
Animal kingdom is divided into Invertebrates and vertebrates . vertebrates have backbone and Invertebrates have no backbone .
Invertebrates are divided into nine phyla ; protozoa , porifera, coelenterate , Platyhelminthes, Namatoda , Annelida , Echinotermata , Mollusca and Arthropoda.
Vertebrates are divided into Amphibians, Reptiles, Fishes, Birds, Mammals, and Animals
