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Benson Pecha Kucha

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Pecha-Kucha of overview of life on Earth/in the universe

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Benson Pecha Kucha

  1. 1. Life in the Universe
  2. 6. <ul><li>Alien life </li></ul><ul><li>forms? </li></ul>
  3. 7. Life has changed over time – evolved. New species have evolved…while some organisms have hardly changed at all.
  4. 8. Stromatolite
  5. 9. Ancient trilobites & their present-day cousins, the chitons
  6. 10. Cockroaches Jurassic & Modern
  7. 11. Natural variation
  8. 12. Environmental Pressure & Survival of the Fittest
  9. 13. Horses – Eocene to modern
  10. 14. Requirements of life, (as we know it) <ul><li>Carbon-based molecules </li></ul><ul><li>Energy source </li></ul><ul><li>Water </li></ul>
  11. 15. <ul><li>DNA </li></ul><ul><li>Present in all of Earth’s life forms </li></ul>
  12. 17. <ul><li>The Goldilocks Principle </li></ul><ul><li>“ This porridge is too hot.” </li></ul><ul><li>“ This porridge is too cold.” </li></ul><ul><li>“ This is just right.” </li></ul>
  13. 18. Why does life exist on Earth ? <ul><li>Life began here </li></ul><ul><li>Life traveled here from other worlds - exogenesis </li></ul>
  14. 19. Exogenesis – Did life travel here from a distant world?

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