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Tree of Life

Tree of Life. old view – humans are best. modern view – all life equal. Modern Taxonomy. Differences in an RNA subunit indicate 3 major taxa of life on Earth. All Life on Earth. RNA subunit. Domains. Archaea. Bacteria. Eukarya. (ancient bacteria). (true bacteria). (eukaryotes).

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Tree of Life

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  1. Tree of Life old view – humans are best modern view – all life equal

  2. Modern Taxonomy Differences in an RNA subunit indicate 3 major taxa of life on Earth. All Life on Earth RNA subunit Domains Archaea Bacteria Eukarya (ancient bacteria) (true bacteria) (eukaryotes)

  3. Domain Archaea Domain Archaea has 1 Kingdom Archaea Archaebacteria

  4. Domain Archaea KingdomArchaebacteria Characteristics prokaryotic unicellular autotrophic or heterotrophic cell wall no peptidoglycan lives in extreme environments

  5. Domain Archaea KingdomArchaebacteria Prokaryotic – no membrane bound organelles

  6. Domain Archaea KingdomArchaebacteria Unicellular – one cell

  7. Domain Archaea KingdomArchaebacteria autotrophic or heterotrophic autotrophic (make their own food) heterotrophic

  8. Domain Archaea KingdomArchaebacteria Cell Wall – structure around the cell membrane for support

  9. Domain Archaea KingdomArchaebacteria No Peptidoglycan – other bacteria have it in the cell wall Archaebacteria other bacteria

  10. Domain Archaea KingdomArchaebacteria Archaebacteria live in extreme environments. some can live in a geyser (hot springs) some can live in a volcanic vent

  11. Domain Archaea KingdomArchaebacteria Examples methanogen

  12. Domain Bacteria Domain Bacteria has 1 Kingdom Bacteria Eubacteria (true bacteria)

  13. Domain Bacteria Kingdom Eubacteria Characteristics prokaryotic unicellular autotrophic or heterotrophic cell wall peptidoglycan common bacteria that live around us

  14. Domain Bacteria Kingdom Eubacteria Prokaryotic – no membrane bound organelles

  15. Domain Bacteria Kingdom Eubacteria Unicellular – one cell

  16. Domain Bacteria Kingdom Eubacteria autotrophic or heterotrophic autotrophic heterotrophic

  17. Domain Bacteria Kingdom Eubacteria Cell Wall – structure around the cell membrane for support

  18. Domain Bacteria Kingdom Eubacteria Peptidoglycan found in the cell wall Archaebacteria Eubacteria

  19. Domain Bacteria Kingdom Eubacteria They are the common bacteria – many cause disease. Lyme Disease E. coli – food poisoning Legionnaires Disease Pneumonia bacteria bacterium with flagella

  20. Domain Eukarya Domain Eukarya has 4 Kingdoms Eukarya Protista Fungi Plantae Animalia

  21. Domain Eukarya Kingdom Protista Characteristics eukaryotic unicellular (usually) some plant-like - photosynthetic some animal-like - heterotrophic some fungus-like – decomposers some have cell walls with cellulose

  22. Domain Eukarya Kingdom Protista eukaryotic – membrane bound organelles

  23. Domain Eukarya Kingdom Protista Unicellular – one cell

  24. Domain Eukarya Kingdom Protista some are plant-like - photosynthetic Two species of algae (protists).

  25. Domain Eukarya Kingdom Protista some are animal-like - heterotrophic

  26. Domain Eukarya Kingdom Protista some are fungus-like - decomposers

  27. Domain Eukarya Kingdom Protista Other Examples Volvox (green algae) Diatoms Paramecium

  28. Domain Eukarya Kingdom Fungi Characteristics eukaryotic multicellular (usually) heterotrophic (decomposers) cell walls with chitin

  29. Domain Eukarya Kingdom Fungi eukaryotic – membrane bound organelles

  30. Domain Eukarya Kingdom Fungi multicellular – many cells (billions/trillions)

  31. Domain Eukarya Kingdom Fungi heterotrophic - decomposers

  32. Domain Eukarya Kingdom Fungi cell walls with chitin

  33. Domain Eukarya Kingdom Fungi Examples athletes foot bracket fungus morel – edible bread molds yeast mushroom – poisonous

  34. Domain Eukarya Kingdom Plantae Characteristics eukaryotic multicellular photosynthetic cell walls with cellulose

  35. Domain Eukarya Kingdom Plantae eukaryotic – membrane bound organelles

  36. Domain Eukarya Kingdom Plantae multicellular – many cells (billions/trillions)

  37. Domain Eukarya Kingdom Plantae photosynthetic – can make its own food

  38. Domain Eukarya Kingdom Plantae cell walls contain cellulose cellulose formula cellulose fibers

  39. Domain Eukarya Kingdom Plantae Examples flowering trees conifers (cones) flowers moss fern

  40. Domain Eukarya Kingdom Animalia Characteristics eukaryotic multicellular heterotrophs (consumers) no cell walls mobile (motile)

  41. Domain Eukarya Kingdom Animalia eukaryotic – membrane bound organelles

  42. Domain Eukarya Kingdom Animalia multicellular – many cells (billions/trillions) muscle cells

  43. Domain Eukarya Kingdom Animalia heterotrophs - consumers

  44. Domain Eukarya Kingdom Animalia no cell walls

  45. Domain Eukarya Kingdom Animalia motile – at least part of their lives

  46. Domain Eukarya Kingdom Animalia Examples

  47. Chapter 18 Classification

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