Go to Edpuzzle.com Watch video on Taxonomy We will take notes on classification after the EDpuzzle
The science of naming and classifying organisms 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?
People 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
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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.
Classification Scheme Domain—all organisms Kingdom Phylum Class Order Family Genus species—one type of organism
Classification Scheme Domain Does Kingdom King Phylum Philip Class Call Order Out Family For Genus Grape species soda How do I remember this?
Classification Scheme Domain—all organisms Kingdom Phylum Class Order Family Genus species—one type of organism
? Which level is most specific?
Humans Kingdom Animalia Phylum Chordate Class Mammalia Order Primates Family Homidae Genus Homo Species sapien
Bonobo Kingdom Animalia Phylum Chordate Class Mammalia Order Primates Family Pongidae Genus Pan Species paniscus
House Cat Kingdom Animalia Phylum Chordate Class Mammalia Order Carnivora Family Felidae Genus Felis Species domesticus
Lion Kingdom Animalia Phylum Chordate Class Mammalia Order Carnivora Family Felidae Genus Panthera (Felis) Species leo
Housefly Kingdom Animalia Phylum Arthropoda Class Insect Order Diptera Family Muscidae Genus Musca Species domestica
a. jaguar and the ocelot c. jaguarundi and bobcat 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
Identify each of the following organisms: ? Identify each of the following organisms: 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
What about B?? How is it classified? Has vertebrae Phylum Chordata 1b Has no vertebrae Go to 2 2a Has 3 or more body segments Go to 3 2b Has 2 or fewer body segments Go to 4 3a Has 1 or more pairs of walking legs per segment Class Chilopoda or Diplopoda 3b Has 3 pairs of walking legs Class Insecta 4a Has antenna Class Crustacea 4b Has no antenna Class Arachnida 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?