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Symbiosis

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Transcript

  • 1.
    • What is symbiosis?
    • What are the different kinds of symbiosis?
    • Examples
    AGENDA
  • 2. What is symbiosis?
    • What it means:
    • Two organisms that live together
    • Temporarily or for a longer time
    • At least one of the organisms benefits from the relationship
    Literal definition: the act of living together
  • 3. What are the different kinds of symbiosis? Parasitism Mutualism Commensalism both organisms benefit one organism benefits one organism benefits one organism is unaffected one organism is harmed
  • 4. Parasitism: one benefits, one is harmed Example 1: Acacia plant with ant galls Ants lay eggs on acacia tree Acacia covers the infected area with brown flesh (gall)
  • 5. Mutualism: both benefit Example 2: Moray Eel with Cleaner Fish Moray Eel gets a clean mouth Cleaner Fish gets a meal
  • 6. Commensalism: one benefits, one is unaffected Example 3: Cattle with cattle egrets Cattle stir up insects as they eat grass Egrets hang around and eat insects
  • 7. Commensalism: one benefits, one is unaffected Example 4: Clown fish with anemone Clown fish gets protection Anemone is unaffected
  • 8. Mutualism: both benefit Example 5: Antelope with Oxbird Antelope gets rid of parasites Oxbird gets a meal
  • 9. Parasitism: one benefits, one is harmed Example 6: Taenia worm in human eye Worm infects human blood stream Human may go blind
  • 10. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.