Slide 1

The History of Classification and Taxonomic Systems Classification

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Early Classification Systems Aristotles Classification System: Plants HerbsShrubsTrees Violets Rosemary Onions Blackberry Bush Honeysuckle Flannelbush Apple Oak Maple Animals LandWaterAir Wolf Cat Bear Dolphin Eel Sea bass Owl Bat Crow

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Early Classification Systems Continued

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Comparing Classification Systems AristotleLinnaeus Aristotles categories were very general As new organisms were discovered, scientists were unable to classify organisms under these categories. Ex. Frogs live on land and in water. More specific We use this system today The system is called taxonomy

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Taxonomy Linnaeuss system used the principles of taxonomy. Taxonomy: The discipline of identifying, naming and classifying species based on their natural relationships

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Binomial Nomenclature Taxonomic organization includes a term called Binomial Nomenclature. This means that the scientific name of a species contains two names 1.) Genus name 2.) Species name Example: Humans: Homo sapiens Homo Genus namesapiens Species name

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Todays Taxonomic Categories Highlighted categories are the actual scientific name (Bionomial Nomenclature). Domain Broadest category that contains one or more kingdoms Kingdom Contains related Phyla or divisions Phylum Contains related classes Class Contains related orders Order Contains related families Family Containing related genera Genus Containing related species Species Most specific category

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How to remember the order of the Taxonomic System Domain Dumb Kingdom Kings Phylum Play Class Cards Order- On Family Fancy Genus Green Species Stools Dumb kings play cards on fancy green stools.

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Classification Video

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Exit Questions 1.) Why is it important to have a biological classification system? 2.) Compare and contrast Linnaeus and Aristotles systems of classification. 3.) Define and describe binomial nomenclature.