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Understanding Classification: The Linnaean System and Binomial Nomenclature

Explore the foundational principles of biological classification introduced by Carolus Linnaeus. This system utilizes binomial nomenclature, a two-name approach, where the first part denotes the genus with a capitalized letter, while the second indicates the species with a lowercase letter. The importance of Latinized names is emphasized, and various examples are provided, such as Ursus americanus (American Black Bear) and Canis lupus (Gray Wolf). Additionally, we delve into domains, kingdoms, and how dichotomous keys aid in species identification.

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Understanding Classification: The Linnaean System and Binomial Nomenclature

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  1. Classification

  2. How Would You Classify These Items?

  3. Carolus Linnaeus

  4. Dear King Philip Came Over For Gold Specks

  5. Binomial Nomenclature: “a two-name system” • First part of name: genus first letter always capitalized • Second part of name: species first letter always lowercase • Entire name is underlined or italicized • Names must be submitted for acceptance by original discoverer, and are generally Latin or Latinized

  6. Ursus americanus American Black Bear

  7. Canis domesticus Canis lupus

  8. Domain Archaea

  9. Domain Eubacteria

  10. Domain Eukarya

  11. Kingdom Protista Animal-Like (Protozoans) Paramecium Giardia Amoeba Fungus-Like Plant-Like Water Mold Slime Mold Diatom Euglena Green Algae Brown Algae Dinoflagellates

  12. Kingdom Fungi

  13. Kingdom Plantae Primitive Plants Bryophyte (Moss) Pteridophyte(Fern) Complex Plants Pteridophyte(Fern) Coniferophytes (Pine Trees) Angiosperm; Dicot Angiosperm; Monocot

  14. Kingdom: Animalia Porifera Ctenophora Cnidaria Nematoda Platyhelminthes

  15. Human Classification Domain: Eukarya Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates Family: Hominidae Genus: Homo Species: Sapien

  16. Dichotomous Keys 1a. Organism has 4 legs Go to # 2 1b. Organism has more than 4 legs Go to # 20 2a. Organism has a tail Go to # 3 2b. Organism has no tail Go to # 35 3a. Organism has stripes Bengal Tiger 3b. Organism has no stripes African Lion

  17. Dichotomous Key • Try this one: 1a. Organism walks on all 4 legs (quadruped) 2 1b. Organism walks on 2 legs (biped) 8 2a. Organism has visible fur 3 2b. Organism has no visible fur 20 3a. Organism lives in warm climates 7 3b. Organism lives in cold climates 4 4a. Organism has brown or black fur Ursus americanus 4b. Organism has white fur Ursus maritimus

  18. Louisiana Pancake Batfish - 2010

  19. Goliath Bird-Eating Spider - 2006

  20. Lesula - 2007

  21. Pinnochio Frog - 2010

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