BIO112 Lab Exam 1 Current Review Set Terms with Correct Answers

taxonomy - Correct Answer The science of classifying and naming organisms systematics - Correct Answer study of the diversity of life and the evolutionary relationships between organisms binomial nomenclature - Correct Answer A system for giving each organism a two-word scientific name that consists of the genus name followed by the species name taxonomic levels - Correct Answer Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species cladistics - Correct Answer classification based on common evolutionary ancestry cladogram - Correct Answer Diagram that shows hypothesized evolutionary relationships among a group of organisms clade - Correct Answer A group of species that includes an ancestral species and all its descendants. derived characteristic - Correct Answer trait that differs in structure or function from that found in the ancestral line for a group of species; used in constructing cladograms monophyletic group - Correct Answer group that consists of a single ancestral species and all its descendants and excludes any organisms that are not descended from that common ancestor paraphyletic group - Correct Answer A monophyletic group in which some descendants of the common ancestor have been removed. polyphyletic group - Correct Answer A taxonomic grouping consisting of several species that lack a common ancestor dichotomous key - Correct Answer a key for the identification of organisms based on a series of choices between alternative characters