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Bio2, Ch 17 Vocab

Biology definitons

TermDefinition
Classification The grouping of objects or organisms based on a set of criteria
Taxonomy a discipline of biology primarily concerned with identifying, naming, and classifying species based on natural relationships.
Binomial Nomenclature Gives each species a scientific name that has two parts.
Taxon A named group of organisms.
Genus Defined group of species that are closely related and share a common ancestor
Family The next higher taxon, consisting of similar, related genera.
Order Contains related family
Class Contains related orders
Phylum Division that contains related classes
Division Contains related classes
Kingdom The taxon composed of related phyla or divisions
Domain The broadest of all the taxa and contains one or more kingdoms.
Phylogeny Evolutionary history of a species.
Character Inherited morphological or biochemical feature that varies among species and can be used to determine patterns of descent.
Molecular Clock Model that uses comparisons of DNA sequences to estimate phylogeny and rate of evolutionary change.
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.
Archaea Prokaryotes whose cell walls do not contain peptidoglycan.
Protist Unicellular, multicellular, or colonial eukaryotic whose cell walls may contain cellulose; can be plantlike, animal-like, or fungus like.
Fungus Unicellular or multicellular eukaryote that is stationary, absorbs nutrients from organic materials in the environment, and has cell walls that contain chitin.
Created by: Jsmith3
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