1 / 11

What is the importance of classifying things?

What is the importance of classifying things? . It makes it easier … To organize To identify To easily communicate with others. What is Classification?. Classification is placing things into categories based on similar characteristics. Taxonomy is the science of classifying organisms.

chaman
Download Presentation

What is the importance of classifying things?

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. What is the importance of classifying things? It makes it easier … • Toorganize • To identify • To easily communicate with others

  2. What is Classification? • Classificationis placing things into categories based on similar characteristics • Taxonomyis the science of classifying organisms.

  3. Aristotle( 384 - 322 B.C.) • Greek philosopher and naturalist • 1st to classify organisms • Too simple of a classification system to be effective • Two kingdoms: Plants or Animals

  4. CarolusLinneus( 1707-1798) • each species had a unique form and could be classified by some of its key characteristics (which now includes DNA) • organized life in a ladder-like hierarchy, with plants on the bottom, animals inthe middle, and humans on top

  5. 7 Taxa of Classification – categories of classification; many smaller taxa are placed under the larger category above it DOMAIN KINGDOM PHYLUM CLASS ORDER FAMILY GENUS SPECIES • Kingdom- very general; most diverse; most inclusive • Species- most specific; least diverse; most exclusive

  6. How Can You Remember the 7 Taxon levels? • KingPhilip Came Over ForGood Spaghetti • Kids PlayChessOver FavoriteGooeySnacks • KatiePleaseComeOver ForGingerSnaps  Can you come up with your own pneumonic? • K?P? C? O?F? G? S?

  7. Sea star Coral snake Grizzly bear Black bear Red fox Abert squirrel Giant panda KINGDOM Animalia PHYLUM Chordata CLASS Mammalia ORDER Carnivora FAMILY Ursidae GENUS Ursus SPECIES Ursus arctos

  8. Carolus Linnaeus (1707 – 1778 A.D.) • 1732, came up with the universal 2 word-naming system called BINOMIAL NOMENCLATURE • Based on the dead language called LATIN • Each organism has a GENUSandSPECIESname • It is the system still used today

  9. Binomial Nomenclature – Linneaus’ two-word naming system • GENUSis - Capitalized - Written 1st - can be underlinedoritalicized(not both) • SPECIES is - Lowercase - Written 2nd - can be underlinedor italicized (not both) Pantheraleo Lion Drosophila melanogaster Fruit fly Canislupus Wolf • Do you know the scientific name for humans? • That’s right! Homo sapiens

  10. An identification key that contains pairs of contrasting descriptions is called a Dichotomous Key. How To Use a Dichotomous Key 1. a. Insect has wings ………. Go to 2 b. Insect has no wings…….. Go to 9 2. a. Insect has 2 wings …….. Go to 3 b. Insect has 4 wings …….. Go to 12 3. a. Wings are of equal size ….. Apis mellifera (honeybee) b. Wings are of unequal size …. Go to 5

More Related