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Chapter 18 Vocabulary
Vocabulary for G-Money's Class
24
Biology
Not Applicable
01/12/2012

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Term
Taxonomy
Definition
Discipline of naming organisms and assigning each organism a universally accepted name
Term
Binomial Nomenclature
Definition
Classification system in which each species is assigned a two-part scientific name
Term
Genus
Definition
Group of closely related species and the first part of the scientific name in binomial nomenclature
Term
Taxon
Definition
Group or level of organization into which organisms are classified
Term
Family
Definition
Group of genera that share many characteristics
Term
Order
Definition
Group of similar families
Term
Class
Definition
Group of similar orders
Term
Phylum
Definition
Group of closely related classes
Term
Kingdom
Definition
Large taxonomic group consisting of closely related phyla
Term
Phylogeny
Definition
The study of evolutionary relationships among organisms
Term
Evolutionary Classification
Definition
Method of grouping organisms together according to their evolutionary history
Term
Derived Character
Definition
Characteristic that appears in recent parts of a lineage, but not in its older members
Term
Cladogram
Definition
Diagram that shows the evolutionary relationships among a group of organisms
Term
Molecular Clock
Definition
Model that uses DNA comparisons to estimate the length of time that two species have been evolving independently
Term
Domain
Definition
Most exclusive taxonomic category, larger than a kingdom
Term
Bacteria
Definition
Domain of unicellular prokayotes that have cell walls containing peptidoglycan
Term
Eubacteria
Definition
Kingdom of unicellular prokaryotes whose cell walls are made up of peptidoglycan
Term
Archea
Definition
Domain of unicellular prokayotes that have cell walls that do not contain peptidoglycan
Term
Archeabacteria
Definition
Kingdom of unicellular prokaryotes whose cell walls are not made up of peptidoglycan
Term
Eukarya
Definition
Domain of all organisms whose cells have nuclei, including protists, plants, fungi, and animals
Term
Protista
Definition
Kingdom composed of eukartotes that are not classified as plants animals or fungi
Term
Plantae
Definition
Kingdom of multicellular photosynyhetic autotrophs that have cell walls containing cellulose
Term
Animalia
Definition
Kingdom of multicellular eukaryotic heterotrophs whose cells do not have cell walls
Term
Order goes
Definition
Kingdom-Phylum-Class-Order-Family-Genus-Species

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