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Biology

WCHS Biology Chapter 17

WordDefinition
Classification grouping of objects or information based on similiarities
Taxonomy branch of biology that groups and names organisms based on studies of their shared characteristics; biologists who study taxonomy are called taxonomists
Bionomial Nomenclature two-word system developed by Carolus Linnaeus to name species; first word identifies the genus of the organism, the second word is often a descripitive word that describes a characteristic of the organism
Genus first word of a two-part scientific name used to identify a group of similiar species
Specific Epithet the second word of a species name
Family the next larger taxon in the biological classification system, consists of a group of similiar genera
Order taxonomic grouping of similiar families
Class taxonomic grouping of similiar orders
Phylum taxonomic groupings of similiar classes
Division taxonomic grouping of similiar classes; term used instead of phyla by plant taxonomists
Kingdom taxonomic grouping of similiar phyla or divisions
Phylogeny evolutionary history of a species based on comparative relationships of structures and comparisons of modern life forms with fossils
Cladistics biological classification systems based on phylogeny; assumes that as groups of organisms diverge and evolve from a common ancestral group, they retain derived traits
Cladogram branching diagram that models the phylogeny of a species based on the derived traits of a group of organisms
Eubacteria group of prokaryotes with strong cell walls and a variety of structures, may be autrotrophs (chemosynthetic or photosynthetic) or heterotrophs
Protist diverse group of multiullular eukaryotes that lack complex organ systems and live in moist environments; may be autotrophic or heterotrophic
Fungus group of unicellular or multicellular heterotrophic eukaryotes that do not move from place to place; absorb nutrients from organic materials in the environment
Created by: dmoudy
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