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Taxonomy. The science of naming and classifying organisms. Taxonomy cont…. Carolus Linnaeus = Swedish biologist who developed a system for naming and classifying organisms in the 1750’s. Linnaeus developed binomial nomenclature , which is a two word system for naming organisms. ?.
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Taxonomy The science of naming and classifying organisms
Taxonomy cont… • Carolus Linnaeus = Swedish biologist who developed a system for naming and classifying organisms in the 1750’s. • Linnaeus developed binomial nomenclature, which is a two word system for naming organisms. ? Can you think of any examples of things having 2 names?
Importance of Scientific Names • The scientific name of an organism gives biologists a common way of communicating, regardless of their native language. • One species may have many common names, and one common name may be used for more than one species.
Scientific Names • Rules: • The first name is always the genus • The second name is always the species. • The first letter of the genus is always capitalized • The first letter of the species is always lower case. • Italicized or underlined. • Written in Latin. • Homo sapiens People
? How does this picture illustrate binomial nomenclature?
Classification Scheme Domain—all organisms Kingdom Phylum Class Order Family Genus Species—one type of organism
Classification Scheme Domain—all organisms Kingdom Phylum Class Order Family Genus Species—one type of organism
Classification Scheme Domain Does Kingdom Katy PhylumPerry ClassCall OrderOut Family For Genus Great Speciesselfies How do I remember this?
? Which level is most specific?
Humans Kingdom Animalia PhylumChordate ClassMammalia OrderPrimates Family Homidae Genus Homo Speciessapien
Bonobo Kingdom Animalia PhylumChordate ClassMammalia OrderPrimates Family Pongidae Genus Pan Speciespaniscus
House Cat Kingdom Animalia PhylumChordate ClassMammalia OrderCarnivora Family Felidae Genus Felis Speciesdomesticus
Lion Kingdom Animalia PhylumChordate ClassMammalia OrderCarnivora Family Felidae Genus Panthera (Felis) Speciesleo
Housefly Kingdom Animalia PhylumArthropoda ClassInsect OrderDiptera Family Muscidae Genus Musca Speciesdomestica
Scientific Name Common Name Felis pardalis Ocelot Panthera onca Jaguar Felis yaguarondi Jaguarundi Lynx rufus Bobcat According to the chart, the 2 cats that are most closely related are the a. jaguar and the ocelot c. jaguarundi and bobcat b. jaguar and the bobcat d. ocelot and jaguarundi
? Which of the following are most closely related to one another? a. Order D and order E c. Genus I and Genus J b. Order U and Order V d. Family W and Family X
Dichotomous Key • Method used for classifying an unknown organisms • Contains pairs of contrasting descriptions • After each description, the user will be directed to another pair of descriptions • The organism will be identified by the contrasting descriptions
1. a. wings covered by an exoskeleton ………….go to step 2 b. wings not covered by an exoskeleton ……..go to step 3 2. a. body has a round shape …………………………ladybug b.body has an elongated shape ……………..grasshopper 3. a. wings point out from the side of the body …….dragonfly b. wings point to the back of the body ……………housefly ? Identify each of the following organisms:
? According to the information in the dichotomous key, Organism A is most likely classified in Class – a. Diplopoda c. Crustacea b. Insecta d. Arachnida ? What about B?? How is it classified?