What is the importance of classifying things It

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What is the importance of classifying things? It makes it easier … • To

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

What is Classification? • Classification is placing things into categories based on similar characteristics l Taxonomy is science of classifying organisms. the

Aristotle ( 384 - 322 B. C. ) • Greek philosopher and naturalist •

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

Carolus Linneus ( 1707 -1798) • each species had a unique form and could

Carolus Linneus ( 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 ladderlike hierarchy, with plants on the bottom, animals in the middle, and humans on top

7 Taxa of Classification – categories of classification; many smaller taxa are placed under

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

How Can You Remember the 7 Taxon levels? • King Philip Came Over For

How Can You Remember the 7 Taxon levels? • King Philip Came Over For Good Spaghetti • Kids Play Chess Over Favorite Gooey Snacks • Katie Please Come Over For Ginger Snaps Can you come up with your own pneumonic? • K? P ? C? O ? F ? G? S?

Grizzly bear Black bear Giant panda Red fox Coral Sea star Abert squirrel snake

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

Carolus Linnaeus (1707 – 1778 A. D. ) 1. 1732, came up with the

Carolus Linnaeus (1707 – 1778 A. D. ) 1. 1732, came up with the universal 2 word-naming system called BINOMIAL NOMENCLATURE 2. Based on the dead language called LATIN 3. Each organism has a GENUS and SPECIES name 4. It is the system still used today

Linneaus’ two-word naming system ðGENUS is - Capitalized - Written 1 st - can

Linneaus’ two-word naming system ðGENUS is - Capitalized - Written 1 st - can be underlined or italicized (not both) l - Lowercase - Written 2 nd - can be underlined or italicized (not both) Panthera leo Lion Drosophila melanogaster Fruit fly Canis lupus l ® SPECIES is Wolf Do you know the scientific name for humans? That’s right! Homo sapiens

An identification key that contains pairs of contrasting descriptions is called a Dichotomous Key.

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