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Chapter 17
| Term | Definition |
|---|---|
| Binomial Nomenclature | Linnaeus’s system of naming organisms, which gives a scientific two-word Latin name to each species--the first part is the genus name and the second is the specific epithet. |
| Class | Taxonomic group that contains one or more related orders. |
| Classification | Grouping of organisms or objects based on a set of criteria that helps organize, communicate, and retain information. |
| Division | Taxonomic term used instead of phylum to group related classes of plants and bacteria. |
| Domain | Taxonomic group of one or more kingdoms. |
| Family | Taxonomic group of similar, related genera that is smaller than a genus and larger than an order. |
| Genus | Taxonomic group of closely related species with a common ancestor. |
| Kingdom | Taxonomic group of related phyla or divisions. |
| Order | Taxonomic group that contains related families. |
| Phylum | Taxonomic group of related classes. |
| Taxon | Named group of organisms, such as a phylum, genus, or species. |
| Taxonomy | Branch of biology that identifies, names, and classifies species based on their natural relationships. |
| Character | Inherited morphological or biochemical feature that varies among species and can be used to determine patterns of descent. |
| Cladistics | Taxonomic method that models evolutionary relationships based on shared derived characters and phylogenetic trees. |
| Cladogram | Diagram with branches that represents the hypothesized phylogeny or evolution of a species or group; uses bioinformatics, morphological studies, and information from DNA studies. |
| Molecular Clock | Model that uses comparisons of DNA sequences to estimate phylogeny and rate of evolutionary change. |
| Phylogeny | Evolutionary history of a species. |
| Archaea | Prokaryotes whose cell walls do not contain peptidoglycan. |
| Fungus | Unicellular or multicellular eukaryote that is stationary, absorbs nutrients from organic materials in the environment, and has cell walls that contain chitin. |
| Protist | Unicellular, multicellular, or colonial eukaryote whose cell walls may contain cellulose; can be plantlike, animal-like, or funguslike. |