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Classification of Living Things

This Powerpoint is a compilation of presentations found on the Internet. Unfortunately, the authors did not include their names on their work. Classification of Living Things. What is classification?. Classification is the grouping of living organisms according to similar characteristics

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Classification of Living Things

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  1. This Powerpoint is a compilation of presentations found on the Internet. Unfortunately, the authors did not include their names on their work.

  2. Classification of Living Things

  3. What is classification? • Classification is the grouping of living organisms according to similar characteristics • The science of classifying organisms is known as taxonomy

  4. Early classification systems • Aristotle grouped animals according to the way they moved

  5. Kingdom Phylum Class Order Family Genus Species The modern system of classification has 7 levels:

  6. Helpful way to remember the 7 levels • Kings Play Cards On Fat Green Stools. • King Philip Came Over For Green Skittles.

  7. Binomial Nomenclature • Developed by Carolus Linnaeus • Two-name system • Each organism has a genus and a species name • First name (genus); second name (species)

  8. What rules are used to write scientific names? • An organism’s genus is always written first; the organism’s species is always written second • The genus is capitalized; the species is written in lower case • Scientific names of organisms are always italicized or underlined

  9. Using the Classification System Field guides help identify organisms. -they highlight differences between similar organisms (like trees) Taxonomic Key (Dichotomous Key) -paired statements that describe the physical characteristics of different organisms

  10. Taxonomic Key • 1a Fruits occur singly ....................................................... Go to 3 • 1b Fruits occur in clusters of two or more ......................... Go to 2 • 2a Fruits are round ....................................................... Grapes • 2b Fruits are elongate ................................................... Bananas • 3a Thick skin that separates easily from flesh .............Oranges • 3b Thin skin that adheres to flesh .............................. Go to 4 • 4a More than one seed per fruit ............................ Apples • 4b One seed per fruit ............................................ Go to 5 • 5a Skin covered with velvety hairs .................... Peaches • 5b Skin smooth, without hairs ........................... Plums What steps would you use to identify a peach?

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