Chpt. 17.1-History of Classification

2,459 views

Published on

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
2,459
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
24
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • Linnaeus’s hierarchical system of classification uses seven taxonomic categories. This illustration shows how a grizzly bear, Ursus arctos , is grouped within each taxonomic category. Only some representative species are illustrated for each category above the species level.
  • Chpt. 17.1-History of Classification

    1. 1. Chapter 17.1- The History of Classification
    2. 2. <ul><li>Classification - grouping objects or organisms based on a set of criteria. </li></ul><ul><li>Aristotle's System- Classified organisms as either animals or plants. </li></ul><ul><li>Plants were classified by size (trees, shrubs or herbs). </li></ul><ul><li>Animals were classified </li></ul><ul><li>as “bloodless” or </li></ul><ul><li>“ red-blooded”. </li></ul>
    3. 3. <ul><li>Carolus Linnaeus (1707-1778) </li></ul><ul><li>-broadened Aristotle's classification </li></ul><ul><li>-created the 1 st formal system of taxonomy. </li></ul><ul><li>Taxonomy - branch of biology that identifies, names and classifies species based on their natural relationships. </li></ul>
    4. 4. <ul><li>Binomial Nomenclature - gives each species a scientific name that has two parts. </li></ul><ul><li>-Binomial means two names. </li></ul><ul><li>-Linnaeus's system of classification. </li></ul><ul><li>-1 st part of the name = genus </li></ul><ul><li>-2 nd part of the name = species </li></ul><ul><li>Examples </li></ul><ul><li>dog= Cannis Familiaris </li></ul><ul><li>cat = Felis Catus </li></ul><ul><li>fox = Cannis Vulpes </li></ul>
    5. 5. Taxonomic Categories
    6. 6. <ul><li>Species - group of organisms that can interbreed and produce fertile offspring. </li></ul><ul><li>Genus - group of species that are closely related and share a common ancestor. </li></ul><ul><li>Family - group of related genera </li></ul><ul><li>Order - group of related families </li></ul><ul><li>Class - group of related orders </li></ul><ul><li>Phylum - group of related classes </li></ul><ul><li>Kingdom - group of related phyla </li></ul><ul><li>Domain - Broadest of all taxa and contains 1 or more Kingdoms. </li></ul>
    7. 7. An example
    8. 9. Red fox Grizzly bear Black bear Giant panda Sea star Coral snake Abert squirrel

    ×