(biology) taxonomic group whose members can interbreed. (biology) a taxonomic group that is a division of a species; usually arises as a consequence of geographical isolation within a species. (biology) a group of organisms within a species that differ in trivial ways from similar groups.
Pharynx. The Pharynx is the main resonating chamber for the voice. The term Throat generally refers to the Pharynx. It is located behind the Mouth and Nasal cavity and above the Esophagus. It is part of both the Respiratory and Digestive Systems, acting as a passage for both air and food during normal daily behavior.The Pharynx is made up of three parts:t extends from the Larynx itself up to the Oropharynx behind the mouth. The Laryngopharynx is actually behind the Larynx and is defined by the form of the Epiglottis. It is directly above the Esophagus and serves as the junction of the Pharynx and Esophagus.
On either side of the opening between the mouth cavity and the oral pharynx is a palatine tonsil, so called because of its proximity to the palate. Each palatine tonsil is located between two vertical folds of mucous membrane called the glossopalatine arches. The nasal pharynx, above, is separated from the oral pharynx by the soft palate. Another pair of tonsils are located on the roof of the nasal pharynx. The pharyngeal tonsils, also known as the adenoids, are part of the bodyâs immune system.