(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.
1 The oropharynx is the middle chamber of the pharynx that passes food from the mouth into the laryngopharynx. The nasopharynx opens above it as well.  The laryngopharynx is the bottom part of the pharynx that marks the branching pathway between the digestive and respiratory systems.