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practice of classifying plants and animals according to their presumed natural relationships
Classification system in which each species is assigned a two-part scientific name
(biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms
Method of grouping organisms together according to their evolutionary history
Characteristic that appears in recent parts of a lineage, but not in its older members
Model that uses DNA comparisons to estimate the length of time that two species have been evolving independently
(microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission
considered ancient life forms that evolved separately from bacteria and blue-green algae
Domain of all organisms whose cells have nuclei, including protists, plants, fungi, and animals
eukaryotic one-celled living organisms distinct from multicellular plants and animals: protozoa, slime molds, and eukaryotic algae
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