Notes
Slide Show
Outline
1
Classifying Living Things
2
Why Do We Classify?
  • Allows us to keep track of the 3 to 10 million different living things on Earth


  • Classification:  The systematic grouping of organisms into categories on the basis of evolutionary relationships or physical appearance
    • The Science of classifying is called “Taxonomy”


  • People have been classifying for nearly 2,000 years
3
Scientific Naming
  • Carolus Linnaeus


    • Developed systems for naming species and organizing them into groups
    • Named over 4000 plants & animals
    • Used appearance to group species
    • “Father of Taxonomy”
    • Used binomial nomenclature


4
"What is Binomial Nomenclature"
  • What is Binomial Nomenclature?
    • “Binomial” = two-name
    • “Nomenclature” = naming system
    • Language:  Latin
    • Ex:  common house cat – Felis domesticus
    •      Mountain lion, puma, cougar – Felis concolor
    •      Bobcat – Felis rufus


    • Genus species
    •    Always capitalized always lower-case
    •         Both are always italicized
    • Genus and species are the most specific levels of organization
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There are 7 levels of classification that describe a species
  • Animalia
  • Chordata
  • Mammalia
  • Carnivora
  • Ursidae
  • Ursus
  • maritimus
    • Kingdom
    • Phylum
    • Class
    • Order
    • Family
    • Genus
    • Species