1. Classification

2. History of Classification 384-322 B.C. - Aristotle (Greek Philosopher) Created first written classification scheme –TWO Groups - Plants & Animals Animal group - anything that lived on land, in the water or in the air. Plant group - based this on their different stems

3. History of Classification 1700's - Carols Linnaeus - –established a simple system for classifying and naming organisms –Based on structural similarities of organism –Binomial Nomenclature - 2 name naming system - still in use today. –Created a system of groups called TAXA or TAXON –Each Taxon is a category into which related organisms are placed Approximantly 2.5 million kinds of organisms identified

4. 7 Levels of Hierarchy Kingdom- Broadest level Phylum Class Order Family Genus Species- Most specific level/ organisms most closely related

5. Evidence used to classify/ relation Embryology Chromosomes/ DNA Biochemistry Physiology Evolution Behavior

6. Binomial Nomenclature Two name naming system for naming organisms. Developed by Carolus Linneaus Genus + species Examples: –Human- Homo sapien –Red maple- rubum sacchrum –Some organism may have the same species name but a different genus. (They are different organisms)

7. Six Kingdoms 1)Archeabacteria 2)Eubacteria 3)Protist 4)Fungi 5)Plant 6)Animal

8. Archaebacteria and Eubacteria Prokaryotic Cells Cell Wall Unicellular Auto or Heterotroph Most are asexual (binary fission) Some decomposers (saprophytes- feed on dead)

9. 1. Kingdom Archaebacteria Very old bacteria that can withstand extreme conditions Most do chemosynthesis/ anareobic respiration Habitat: (very hot, acidic, high pressure, no light, no oxygen) –Volcanoes –Hot springs –Deep ocean

10. 2. Kingdom Eubacteria True bacteria Cynobacteria- blue green algae Convert nitrogen into nitrates needed by plants Habitat: anywhere but not extreme conditions

11. Pros and Cons of Bacteria Cons: –Cause diseases (treat using an antibiotic) Pros –Decompose dead organisms –Cleanup oil spills –Make medicines (antibiotics) –Make food: Cheese and yogurt

12. 3. Kingdom Protista Eukaryotic Cells Some have cell walls Uni/ Multicellular Auto or Heterotroph Most asexual Most aquatic

13. 4. Kingdom Fungi Eukaryotic Cells Uni/ Multicellular 100% Heterotroph (decomposers) Sexual and Asexual Most are terrestrial Nonmotile

14. Kingdom Plantae Eukaryotic Cells Cell wall- chitin (carbohydrate) Multicellular 100% Autotrophs Sexual and Asexual Nonmotile

15. Kingdom Animalia Eukaryotic Cells No Cell wall Multicelllular 100% Heterotroph Most Sexual Most motile

16. Review Who came up with the classification system we now use? What is binomial nomenclature? Scientific Name is the Genus + species 7 Levels of hierarchy Six Kingdoms

17. Who am I Mostly unicellular, has a cell wall, mostly anaerobic or chemosynthesis, can withstand extreme conditions All heterotrophs, has a cell wall, decomposers, All heterotrophs, most are multicellular, motile All are autotroph, multicellular, a/sexual, nonmotile, Like and animal, unicellular, motile, heterotroph Like a plant, autotroph, cell wall, usually aquatic Like a fungus, decomposer, cell wall,