TaxonomyTaxonomy

Cornell NotesCornell Notes

TaxonomyTaxonomy

The science of grouping and naming The science of grouping and naming organismsorganisms

Scientists who study taxonomy are called Scientists who study taxonomy are called TaxonomistsTaxonomists

History of TaxonomyHistory of Taxonomy Classifying organisms was started by a Classifying organisms was started by a

man named Aristotleman named Aristotle His worked was eventually developed by His worked was eventually developed by

Carolus Carolus LinnaeusLinnaeus Linnaeus used similarities in structure to Linnaeus used similarities in structure to

help classify all living thingshelp classify all living things Linnaeus came up with a two word naming Linnaeus came up with a two word naming

system called system called binomial nomenclaturebinomial nomenclature

Binomial NomenclatureBinomial Nomenclature The scientific naming system that uses The scientific naming system that uses

two words to classify all living thingstwo words to classify all living things Linnaeus used similarities in structure Linnaeus used similarities in structure

to determine relationships among to determine relationships among organismsorganisms

Binomial Nomenclature – Two words Binomial Nomenclature – Two words

Homo SapiensHomo SapiensGenus Specific Epithet

Dichotomous KeyDichotomous Key

Coded system of identifying different Coded system of identifying different organismsorganisms

Used to identify similar organismsUsed to identify similar organisms Like a puzzleLike a puzzle

Characteristics to Characteristics to considerconsider

SizeSize ColorColor DirectionDirection Number of legsNumber of legs Etc.Etc.

5 Questions5 Questions What is taxonomy?What is taxonomy? What is the name of the two-word naming What is the name of the two-word naming

system?system? Who came up with the two-word naming Who came up with the two-word naming

system?system? What is the scientific name of humans?What is the scientific name of humans? ““Homo” in Homo Sapiens refers to what? Homo” in Homo Sapiens refers to what?

(genus or species?)(genus or species?)

Now you try!Now you try!

Work on the dichotomous key to figure Work on the dichotomous key to figure out the names of the 6 alien organisms.out the names of the 6 alien organisms.

Wacky People Key

1a Two feet 21b Some other number of feet 32a Does not look at all human 42b Looks a lot like a human 53a One leg 63b Three or four legs 74a Fly-like Mosk Cara4b Not fly-like 85a Seems to be a girl Rita Nita5b Not a girl 96a Leg is curled , two feet Ru-ela.Brella 6b Leg is straight, one foot Giggles7a Three legs 107b Four legs 118a Has webbed feet Hex Oculate 8b Clawed feet 129a Curly hair, no toes Lugio Wirum9b Wiggly looking mouth, three toes on feet C. Nile10a Very long nose, open mouth Elle E. Funk10b Some other appearance 1311a Has duck bill, two pinchers Tri D. Duckt11b No arms or pinchers 1412a Has ears, tail, and beak Grif Leon12b Four eyes on stalks Eggur Ondy13a One eye, webbed feet Cue Kide13b Four stalked eyes, four pinchers Quadrumenox14a Three toed feet, nose like a flower Tunia petalos14b Spider-like, has spots Patterned mulywumpus

1a Two feet 21b Some other number of feet 3

3a One leg 63b Three or four legs 7

7a Three legs 107b Four legs 11

11a Has duck bill, two pinchers Tri D. DucktTri D. Duckt11b No arms or pinchers 14

14a Three toed feet, nose like a flower Tunia petalosTunia petalos14b Spider-like, has spots Patterned mulywumpusmulywumpus