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To be successful today…

To be successful today…. A word about exemptions…. BYOD Color of the day is Phones are in put away in backpacks. Classification & Taxonomy. Essential Question: How is the diversity of life classified and named?. Who are YOU???. What do YOU call this animal?.

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To be successful today…

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  1. To be successful today… A word about exemptions… BYOD Color of the day is Phones are in put away in backpacks

  2. Classification & Taxonomy Essential Question: How is the diversity of life classified and named?

  3. Who are YOU???

  4. What do YOU call this animal?

  5. Basic Definitions • Classification • Taxonomy

  6. Why classify organisms? • To organize the diversity of life • To help us know what organism we are referring to

  7. Who developed our current classification system, and what is it? • Carolus Linneaus

  8. Kingdom (6) Phylum Class Order Family Genus Species Levels of Classification

  9. Linnaean System of Classification • Each level is called a taxon • Smallest taxon is the species • Species ~ only level where organisms interbreed

  10. Example

  11. There are 6 Kingdoms

  12. How do we name organisms? • Each organism is given a two-part scientific name using only the Genus and species names • binomial nomenclature

  13. Why do we use Scientific Names? • South America – gatomonte • North US - puma • South US – mountain lion • Florida - panther • Scientific Name – Felisconcolor

  14. 3 Rules for writing Scientific Names • 1) First letter of genus – ALWAYS CAPATILIZED • 2) First letter of species – never capitalized • 3) Scientific names are italicized (if typed) or underlined if hand written

  15. Examples • Ursus maritimus • Ursus arctos • Genus-Ursus = bear • Species-maritimus = sea • Species-arctos = grizzly

  16. Which of these are written correctly? • Violatricolor (pansy with 3-colored flower) • Quercus phellos (Willow Oak) • Nymphaeaordata (fragrant water lily) • ClostridiumBotulinum (bacteria that causes a form of food poisoning) • homo sapiens

  17. Which of these are written correctly? • Violatricolor(pansy with 3-colored flower) • Quercusphellos (Willow Oak) • Nymphaeaordata(fragrant water lily) • ClostridiumBotulinum (bacteria that causes a form of food poisoning) • homo sapiens

  18. 2 Rules for assigning scientific names • 1) All scientific names must be Latin words/terms • 2) NO two organisms can have the same scientific name

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

  20. In review… • Kings • Play • Chess • On • Fuzzy • Green • Stools • Kingdom • Phylum • Class • Order • Family • Genus • Species • King • Philip • Came • Over • For • Good • Soup

  21. To be successful today… Turn in classification lab HW: Shark Dichotomous Key DUE MON 12/11 Pull out classification notes BYOD Color of the day is Phones are in put away in backpacks

  22. Turn to a Partner • Tell your partner the Linnaeus hierarchal system of classification. Include all seven levels, from largest or most inclusive to smallest, least inclusive. • Take turns

  23. Questions???

  24. CONCEPT REVIEW: True or False 1) Biologists use a classification system to name organisms and group them in a logical manner. TRUE

  25. CONCEPT REVIEW: Multiple Choice The science that specializes in the classification of organisms is • anatomy • taxonomy • botany • biology

  26. CONCEPT REVIEW: Multiple Choice The science that specializes in the classification of organisms is • anatomy • taxonomy • botany • biology

  27. CONCEPT REVIEW: Multiple Choice The largest most inclusive of Linnaeus’s taxonomic categories is the • kingdom • phylum • order • species

  28. CONCEPT REVIEW: Multiple Choice The largest most inclusive of Linnaeus’s taxonomic categories is the • kingdom • phylum • order • species

  29. The Tree of Life has been updated since Linnaeus’s time • Scientists now classify organisms into an even broader category, called the domain, above the kingdom level

  30. DOMAIN ARCHAEA DOMAIN EUKARYA Eubacteria Archaebacteria Protista Plantae Fungi Animalia DOMAIN BACTERIA 3 Domains: Archaea, Bacteria & Eukarya

  31. Identifying organisms using a dichotomous key • a key used to identify an organism • each stage presents descriptions of two distinguishing characters, with a direction to another stage in the key, until the species is identified

  32. Classification Lab

  33. Classification Today • Diagrams depicting evolutionary relationships based on molecular evidence. • Phylogeny • Cladogram

  34. Reading a cladogram/phylogeny • Each branch represents an evolutionary lineage • X-axis is evolutionary distance from each other and the y-axis is relative time • Intersecting lines represent a speciation event

  35. Practice Problems

  36. Your turn

  37. To be successful today… Pick up graded work (1) Turn in cladogram analysis & cladogram cut and paste BYOD Color of the day is Phones are in put away in backpacks

  38. Dichotomous Key

  39. What’s in the Bag?

  40. Importance of Taxonomy Fight tumors Zebra mussel Orange oil Pine sol Kudzu vine

  41. How would dogs or cats be classified? • What defines a species? • Term breed

  42. Where are YOU???

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