aim : how can organisms in an ecosystem interact with each other?
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Aim : How can organisms in an ecosystem interact with each other?. Why do organisms interact with each other?. In most ecosystems, animals live with other organisms. They live within a group of their own kind called a population. They live with other groups of animals called communities. - PowerPoint PPT PresentationTRANSCRIPT
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Aim: How can organisms in an ecosystem interact with each other?
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Why do organisms interact with each other?
• In most ecosystems, animals live with other organisms.
• They live within a group of their own kind called a population.
• They live with other groups of animals called communities.
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Organisms interact in 3 ways :
1. Competition
What are the ways that organisms interact?
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Competition• Competition occurs when organisms
fight over limited resources
• These resources could be:
Food and Water
Territory
Mates
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2. Predation- one organism kills and eats another
Predation involves a predator (the hunter) and the prey (the hunted)
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http://www.youtube.com/watch?v=yirHPVxSMgc
• http://www.youtube.com/watch?v=XafAdkZIYKA
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3. Symbiosis- two organisms “live together”
There are 3 Types of Symbiosis:
1) Mutualism- 2 different species that live together and both benefit from the relationship
2) Parasitism-2 different species that live together and one benefits from the relationship while harming the other
3) Commensalism-2 different species that live together and one benefit from the relationship while the other receives no benefit
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http://www.youtube.com/watch?v=vR9X3gFTpL0&feature=related
http://www.youtube.com/watch?v=kwK4yJ6tTmc
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Mutualism: Oxpeckers and Mammals
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Mutualism: Flowers and Bees
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Mutualism: Clown Fish and Anemones
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http://www.youtube.com/watch?v=Qqa0OPbdvjw
http://www.youtube.com/watch?v=kwK4yJ6tTmc
http://www.youtube.com/watch?v=dJRJCO59bf4
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Parasitism: Ticks and Dogs
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Parasitism: Tapeworms and Mammals
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http://www.youtube.com/watch?v=9fmx24FbZoM
http://video.google.com/videosearch?q=mutualism&hl=en&emb=0&aq=3&oq=mutual#q=Parasitism&hl=en&emb=0&start=10
http://www.youtube.com/watch?v=vMG-LWyNcAs
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Commensalism: Sharks and Remoras
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• http://www.youtube.com/watch?v=dAU5MTXmAPY&feature=results_main&playnext=1&list=PL0A7A2379A3D95470