1 / 13

CLASSIFICATION

CLASSIFICATION. Chapter 17. What is Classification??. Classification is the arrangement of organisms into orderly groups based on their similarities . Classification is also known as taxonomy. A person who identifies and names organisms is known as a Taxonomist.

ulfah
Download Presentation

CLASSIFICATION

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CLASSIFICATION Chapter 17

  2. What is Classification?? • Classification is the arrangement of organisms into orderly groups based on their similarities. • Classification is also known as taxonomy. • A person who identifies and names organisms is known as a Taxonomist.

  3. Why do we Classify Organisms? • To have accurate and universal names for organisms (regardless of what language you speak). • Prevents the mis-naming of organisms (such as starfish and jelly fish which are not really fish!!

  4. History of Classification -Boring old people, yeah!! • Aristotle was the first official taxonomist 2000 years ago. • He divided organisms into two categories - plants and animals • He then subdivided them based on their habitat(land, sea, air), • And by their morphology (the way they look).

  5. Problems with Aristotle's System • Species are not unchanging • Did not account for evolutionary relationships among organisms • Some organisms did not fit easily • Frogs live on land and in water

  6. Carolus Linnaeus • 18th century taxonomist • Called the “Father of Taxonomy” • Based his classification system on observable characteristics. • Developed binomial nomenclature.

  7. Binomial Nomenclature • Two-Part naming system. • First part Genus • Second part species • It is always in Latin • Capitalize Genus but NOT species • Italicize when typing; underline when writing.

  8. Today’s Classification System • Still uses all the things Aristotle and Linnaeus brought to the table. • In addition, we now know about DNA! • DNA allows us to examine how closely related organisms are to one another.

  9. Taxonomic Categories • Taxon (plural = taxa) is a category into which related organisms are placed. • There is a hierarchy of 8 groups (taxa) from broadest to most specific. • Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

  10. How to remember the order of the Taxa! • Dear • King • Phillip • Came • Over • For • Good • Soup!

  11. Turn to page 489! • ACTIVITY: Classify a giant panda, Ailuropodamelanoleuca, completely from domain to species level by referring to Figure 17.4.

  12. Answer to Activity: • Eukarya, Animalia, Chordata, Mammalia, Carnivora, Ursidae, Ailuropoda, melanoleuca

More Related