A dentist is the health care professional who specializes in the diagnosis, prevention, and treatment of diseases and conditions of the oral cavity (including the teeth, gums and other soft and hard tissues of the mouth). Dentists, also known as 'dental surgeons', help us maintain a bright healthy smile.
The dogfish sharks are classified in the phylum Chordata Chordata, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development.
More on whale Classification from Infoplease: 1  whale: Classification-Classification Whales are classified in the phylum Chordata, subphylum Vertebrata, class Mammalia, ... 2  whale-whale whale, aquatic mammal of the order Cetacea, found in all oceans of the world.3  Members of this ...ore on whale Classification from Infoplease: 1  whale: Classification-Classification Whales are classified in the phylum Chordata, subphylum Vertebrata, class Mammalia, ... 2  whale-whale whale, aquatic mammal of the order Cetacea, found in all oceans of the world. 3  Members of this ...