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.
A dichotomous key is a reference tool used mainly in biology. It allows the scientist to determine what an organism is by answering numerous questions that have only two possi â¦ ble answers. It neither can be a yes or a no, a true or false. Ultimately, the answers will point to a specific organism or some higher taxonomic level. Dichotomous keys can be very broad or extremely specific. To create a key, you need a working knowledgeof the differences between groups of organisms. The more specific the key, the more knowledge you need.