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Classification

Classification Science 7

TermDefinition
Classification The division of organisms into groups, or classes, based on specific characteristics.
Aristotle Philosopher who classified things as either plants or animals
Carolus Linnaeus Made new classification system based on similar structures
Homologous structures similar structures that related species have inherited from a common ancestors
Common ancestor An animal from which two or more different species evolved
Phylogeny evolutionary history of an organism on how it has changed over time
How organisms are classified Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
Genus similar groups of species
Taxonomy the science of classifying and naming organisms
Dichotomous key detailed list identifying characteristics that include scientific names based on TWO characteristics
Scientific name comes from genus and species
Binomial nomenclature two word naming system
3 Domains Bacteria, Archaea, Eukaryota
insect vs. arachnid insect has 6 legs, 3 body segments arachnid has 8 legs, 2 body segments
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