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Bio Definitions 1.5

Textbook Definitions

TermDefinition
Phylogeny Evolutionary history of a group of organisms
LUCA Last Universal Common Ancestor
Eukaryote Organisms w/ nucleus, membrane-bound organelles, & extensive cytoskeleton, uni or multicellular
Taxonomy Branch of biology that describes, names, & classifies groups of organisms
Domain Taxon category, based around common cell biochemistry, above kingdom, bacteria, archaea, & eukaryote, protein w/ distinctive tertiary structure & function, 1st
Phylum Taxon category, above class, below kingdom, in plants called division, 3rd
Scientific Name Unique two-part name to each species, genus -> species name, always italicized, aka latin name
Taxon Group of organisms at any level of the classification system
Tree of Life/Phylogenic Tree A branching diagram showing evolutionary relationships between all living organism on earth
Prokaryote Organism that is unicellular w/ no nucleus, few organelles, and limited cytoskeleton, bacteria/archaea
Genus Taxon category, above species, below family, close related species, always capitalized & italicized, 7th
Created by: KimbaPasch
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