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Classification and Taxonomy

Classification and Taxonomy. I. Introduction. Phylogeny - the evolutionary history of a species or a group of related species Taxonomy - the science of classifying organisms based on similarities and differences first done by the Greek philosopher Aristotle more than 2,000 years ago

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Classification and Taxonomy

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  1. Classification and Taxonomy

  2. I. Introduction Phylogeny- the evolutionary history of a species or a group of related species Taxonomy- the science of classifying organisms based on similarities and differences • first done by the Greek philosopher Aristotle more than 2,000 years ago • classified living things as either animals or plants • In the 1700’s, Carolus Linnaeus devised a method of grouping organisms into hierarchical categories.

  3. Binomial Nomenclature- Two-part naming system using an organisms Genus and species names. ex. Canisfamiliarus (K9-Dogs) • Genus is capitalized, species is lower case • If being typed, whole thing italicized, if hand written, underline

  4. All organisms have:Common name – changes from place to placeScientific name – same every where Mountain Lion Puma Cougar Deer tiger Red tiger Catamount Panther Puma concolor

  5. Other reasons to not use common names… • spider monkey • sea monkey • sea horse • gray wolf • firefly • crayfish • mud puppy • horned toad • ringworm • black bear • jellyfish

  6. II. Classification A. Two systems of species classification: 5/6- Kingdom Scheme3- Domain Scheme - Monera(archea/Eu) - Bacteria - Protista - Archaea - Fungi - Eukarya - Plantae - Animalia

  7. Three Domains

  8. B. Levels of Classification:

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