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Chapter 17


Binomial Nomenclature Linnaeus’s system of naming organisms, which gives us a scientific two-word Latin name to each species-the first part is the genus name & 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, & retain information.
Division Taxonomic term used instead of phylum to group related classes of plants & bacteria.
Domain Taxonomic group of one or more kingdoms.
Family Taxonomic group of similar, related genera that is smaller than a fenus & larder 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, & classifies species based on their natural relationships.
Character Inherited morphological or biochemical feature tat varies among species & can be used to determine patterns of descent.
Cladistics Taxonomic method that models evolutionary relationships based on shared derived characters & phylogenetic trees.
Cladogram Diagram with branches that represents the hypothesized phylogeny or evolution of a species or group; uses bioinformatics, morphological studies, & information form DNA studies.
Molecular Clock Model that uses comparisons of DNA sequences to estimate phylogeny & 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 into the environment, & has cell walls that contain chitin.
Protist Unicellular, multicellular, or colonial eukaryotic whose cell walls may contain cellulose; can be plant like, animal-like, or funguslike.
Created by: Emeraldhope