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Ch. 17 h bio terms

ch 17 terms and definitions

TermDefinition
biodiversity the variety of organisms considered at all levels from populations to ecosystems
taxonomy the science of describing, naming, and classifying organisms
taxon any particular group within a taxonomic group
kingdom largest category
domain in a taxonomic system based on rRNA analysis, one of the three broad groups that living things fall into
phylum the taxonomic group below kingdom and above class
division in taxonomy, a grouping of similar classes of plants
class a taxonomic category containing orders with common characteristics
order the taxonomic category below the class and above the family
family the taxonomic category below the order and above the genus
genus the level of classification that comes after family and that contains similar species
species smallest grouping that contains only one type of organism
binomial nomenclature system of two part names
subspecies variations of a species that live in a different geographical area
systematics goal to classify organisms in terms of their natural relationships
phylogenetics analysis of the evolutionary or ancestral relationships between taxa
phylogenetic diagram type of diagram that looks like a family tree and has a branching pattern that indicates how closely related a subset of taxa are thought to be
cladistics a system of phylogenetic analysis that uses shared and derived characters as the only criteria for grouping taxa
shared character a feature that all members of a group have in common
derived character a feature that evolved only within the group under consideration
clade the group of organisms that includes an ancestor plus all of its decendents
cladogram a diagram that is based on patterns of shared, derived traits taht shows the evolutionary relationships between groups of organisms
bacteria made up of small, single-celled prokaryotic organisms that usually have a cell wall and reproduce by cellular fission
archea have distinctive cell membranes and other unique biochemical and genetic properties
eukarya consists of eukaryotic organisms
eubacteria kingdom; aligns with the domain "bacteria"
archaebacteria kindom; aligns with the domain archea
protista kingdom; contains protists
fungi kindgom of eukaryotes; consists of eukaryotic, heterotrophic organisms
plantae consists of eukaryotic, multicellular plants
animalia eukaryotic, multicellular and heterotrophic organisms
Created by: OConnellC16
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