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Relationships in Nature PowerPoint PPT Presentation


Relationships in Nature. BIO108. Symbiosis. Living together A partnership Two different species Both partners benefit – mutual benefit. Animal Kingdom. Nile crocodile & crocodile bird Hermit crab & sea anemone Buffalo & oxpecker Shark & remora fish. Crocodile & Bird. Nile crocodile

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Relationships in Nature

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Relationships in nature l.jpg

Relationships in Nature

BIO108


Symbiosis l.jpg

Symbiosis

  • Living together

  • A partnership

  • Two different species

  • Both partners benefit – mutual benefit


Animal kingdom l.jpg

Animal Kingdom

  • Nile crocodile & crocodile bird

  • Hermit crab & sea anemone

  • Buffalo & oxpecker

  • Shark & remora fish


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Crocodile & Bird

  • Nile crocodile

    • Usually eats animals

    • Allows bird to walk around its mouth

  • Crocodile bird

    • Cleans parasites in croc’s teeth

    • Removes and eats scraps of food

    • Eats harmful leeches and parasites


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Hermit Crab & Sea Anemone

  • Hermit crab

    • protects the crab

  • Sea anemone

    • Gets leftover food

http://www.ms-starship.com/sciencenew/symbiosis.htm


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Buffalo & Oxpecker

  • Buffalo

    • Lets the bird eat

  • Oxpecker

    • Eats ticks and other parasites off skin

    • Warns buffalo of danger

      http://www.pbs.org/wnet/nature/enemies/partners.html


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Shark and Remora Fish

  • Shark

    • Lets the fish eat

  • Remora Fish

    • Eats parasites

    • Gets the shark’s leftovers


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Lichen

  • Slow growing plants

  • Partnership: fungi & algae

  • Neither could live alone


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Relationships

  • Phoresis

  • Commensalism

  • Mutualism

  • Parasitism


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Phoresis

  • Loose association

  • One organism is smaller than other

  • Larger organism used for transport

  • Dung beetles and cow dung


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Commensalism

  • “eating together at the same table”

  • Only one member benefits

    • sharing space, defense, shelter, food

  • Neither will die if relationship is ended

  • Shrimp & sea cucumber

http://www.ms-starship.com/sciencenew/symbiosis.htm


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Mutualism

  • Both organisms derive mutual benefit

  • Intimate and obligatory

  • Neither can survive without the other

  • Example – host and parasite

  • Tickbirds and rhinos

  • Clownfish & sea anemone


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Parasitism

  • Not symbiotic

  • Causes harm to host


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