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.
Organisms are grouped into phyla based on a general body â¦ plan. For example, the phylum Chordata contains all those animals with a spinal cord. The phylum Arthropoda contains all those animals who are spineless and have an exoskeleton. The level of classification between kingdom and class.