1 On September 5, 2013, CMS released guidance that discussed the provisions of the final rule regarding the physician order and physician certification of hospital inpatient services. 2  This document includes further clarification of issues addressed in the previous guidance.
Full Answer. Also called a dichotomous key, a taxonomic key gives users a systematic and reproducible way to identify items and organisms. It is used for a variety of purposes, such as identifying unknown organisms to a certain taxonomic level (e.g. family, genus and species) and identifying rocks or minerals.
The first part of a scientific name is called the genus. The second part of a species name is the specific epithet. Species are also organized into higher levels of classification.Each level of classification is called a taxon. The highest and broadest taxon is called a domain.ust using common names may make it difficult for scientists to differentiate between them, so every species is given a unique scientific name. Binomial nomenclature is the formal naming system for living things that all scientists use. It gives every species a two-part scientific name.