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Stack #84309

Stack #84309 Classification

TermDefinition
Taxonomy Discipline of classifying organisms and giving each one a universally accepted name
Binomial nomenclature Classification system where each species is given a two part scientific name.
Genus Group of closely related species; first part of the scientific name.
Taxon Group or level of organization into which organisms are classified.
Family Group of genera that share many characteristics.
Order Group of similar families.
Class Group of similar orders.
Phylum Group of closely related classes.
Kingdom Large taxonomic group, consisting of closely related phyla.
Phylogeny The study of evolutionary relationships among organisms.
Evolutionary classification Method of grouping organisms together according to their evolutionary history.
Derived character Characteristic that appears in recent parts of a lineage, but not in its older members.
Cladogram Diagram that shows the evolutionary relationships among a group of organisms.
Molecular clock Model that uses DNA comparisons to estimate the length of time that two species have been evolving independently.
Domain The most inclusive taxonomic category; larger than a kingdom.
Bacteria Domain of unicellular prokaryotes that have cell walls containing peptidoglycans.
Eubacteria Kingdom of unicellular prokaryotes; cell walls contain peptidoglycans.
Archaea Domain of unicellular prokaryotes; have cell walls; do not contain peptidoglycans.
Archaebacteria Kingdom of unicellular prokaryotes ; have cell walls; no peptidoglycans.
Eukarya Domain of all organisms whose cells have nuclei; includes protists, plants, animals, and fungi.
Protista Kingdom composed of eukaryotes that are not classified as plants, animals, or fungi.
Fungi Kingdom composed of heterotrophs; many obtain energy and nutrients from dead organic matter.
Plantae Kingdom of multicellular photosynthetic autotrophs; cell walls contain cellulose.
Animalia Kingdom of multicellular eukaryotic heterotrophs whose cells do not have cell walls.
Created by: Diana Key
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