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Study of Life Classification

Study of Life Classification. What variety! What similarity!. Diversity of Life there are so many different creatures on Earth why are there differences ? Unity of life all creatures have similarities common characteristics why are they so alike ?. Organizing the world of organsims.

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Study of Life Classification

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  1. Study of Life Classification

  2. What variety! What similarity! • Diversity of Life • there are so many different creatures on Earth • why are there differences? • Unity of life • all creatures have similarities • common characteristics • why are they so alike?

  3. Organizing the world of organsims • The Tree of Life • organize creatures by structure & function • how they are built • how they live • organize them into groups of closely related creatures

  4. Eukaryote Prokaryote Bacteria&Archaebacteria Classification • 6 Kingdom system • Prokaryotes • No separate organelles in their cells • Bacteria • Archaebacteria • Eukaryotes • Separate organelles in their cells • Protists • Plants • Fungi • Animals

  5. KingdomBacteria KingdomArchaebacteria KingdomProtist KingdomFungi KingdomPlant KingdomAnimal Prokaryotes Eukaryotes

  6. Classification • Kingdom • Phylum • Class • Order • Family • Genus • species

  7. Organizing systems • Making sense out of the differences Eastern gray squirrel Sciurus carolinensis

  8. Prokaryotes • Bacteria • one-celled organisms • microscopic • no organelles • have cell membrane • have DNA • most common form of life on Earth • incredible number of different kinds

  9. Bacterial diversity rods and spheres and spirals… Oh My!

  10. Both Good & Bad… • Pathogens • cause disease • infections • Beneficial & necessary • help in digestion • help plants grow • make foods

  11. Archaebacteria • Ancient bacteria • live in extreme environments • high heat • high salt • the most ancient creatures living on Earth today

  12. Bacteria live EVERYWHERE • On plants & animals • In plants & animals • In the soil • In the extreme cold • In the extreme hot • On the living • On the dead

  13. Any Questions??

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