Biology: Chapter 18 Vocabulary Words

Vocabulary﷯﷯﷯ ﷯﷯﷯﷯﷯﷯ 
Created May 12, 2011
by dheath729
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discipline of classifying organisms and assigning each organism a universally accepted name.
taxonomy
classification system in which each species is assigned a two-part scientific name.
binomial nomenclature
group of closely related species, and the first part of the scientific name in binomial nomenclature....
genus
group or level of organization into which organisms are classified.
taxon
group of genera that share many characteristics
family
group of similar families
order
group of similar orders
class
group of closely related classes.
phylum
large taxonomic group, consisting of closely related phyla.
kingdom
the study of evolutionary relationships among organims.
phylongeny
method of grouping organisms together according to their evolutionary history.
evolutionary classification
characteristic that appears in recent parts of a lineage, but not in its older members.
derived character
diagram that shows the evolutionary relationships among a group of organisms.
cladogram
model that uses DNA comparisons to estimate the length of time that two species have been evolving...
molecular clock
most inclusive taxonomic category; larger than a kingdom.
domain
domain of unicellular prokaryotes that have cell walls containing peptidoglycans.
Bacteria
kingdom of unicellular prokaryotes whose cell walls are made up of peptidoglycan.
Eubacteria
domain of unicellular prokaryotes that have cell walls that do not contain peptidoglycan.
Archaea
kingdom of unicellular prokaryotes whose cell walls do not contain peptidoglycan.
Archaebacteria
domain of all organisms whose cells have nuclei, including protists, plants, fungi, and animals.
Eukarya
kingdom composed of eukaryotes that are not classified as plants, animals, or fungi.
Protista
kingdom composed of heterotrophs; many obtain energy nutrients from dead organic matter.
Fungi
kingdom of multicellular photosynthetic autotrophs that have cell walls containing cellulose....
Plantae
kingdom of multicellular eukaryotic heterotrophs whose cells do not have cell walls.
Animalia


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