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ch. 18 vocab

vocabulary words on chapter 18

TermDefinition
taxonomy discipline of classifying organism and assigning each organism a universally accepted name
binomial nomenclature classification system in which each species is assigned a two-part scientific name
genus group of closely related species’ and the first part of the scientific name in binomial nomenclature
taxon group or level of organization into which organism 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 study of evolutionary relationships among organisms
evolutionary classification method of grouping organism together according to their evolutionary history
derived characters characteristics that appears in recent parts of 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 most inclusive taxonomic category; larger than a kingdom
bacteria domain of unicellular prokaryotes that have cell walls containing peptidoglycan
eubacteria kingdom of unicellular prokaryotes whose cell walls are made up of peptidoglycan
archaea domain of unicellular prokaryotes that have cell walls that do not contain peptidoglycan
archaebacteria kingdom of unicellular prokaryotes whose cell walls do not contain peptidoglycan
eukarya domain of all organisms whose cells have nuclei, including protists, plants, fungi, and animals
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 that have cell walls containing cellulose
animalia kingdom of multicellular eukaryotic heterotrophs whose cells do not have cell walls
Created by: Tyl3r10959
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