Dental Specialties in US. The American Dental Association recognizes nine dental specialties in which dentists can get additional training and practice in addition to or instead of general dentistry: 1  Dental public health-Study of dental epidemiology and social health policies.
Trichinella spiralis is a parasitic worm that causes the disease Trichinosis. A whipworm is a roundworm that infects the large intestine. Whipworms are found commonly in pork and are often called pork-worms. They are also found in rats, humans, dogs and cats.
The Major phylums in the animal kingdom are as follows. INVERTEBRATES Phylum: Porifera Phylum: Coelenterata/ Cnidaria Phylum: Platyhelminthes Phylum: Nematehelminthes/â¦ Aschelminthese Phylum: Annelida Phylum: Arthropoda Phylum: Mollusca Phylum: Echinodermata. The phylum protozoa is now not treated as animal phylum and it is included under a separate kingdom called PROTISTA.