Relationships in the Ecosystem
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Transcript of Relationships in the Ecosystem
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Relationships in the Ecosystem
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What are the types of relationships?
1) Predator / Prey2) Competition3) Symbiosis
A) commensalismB) mutualismC) parasitism
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Predator / Prey
Predator = animal that hunts another animal for food.
Prey = animal that is eaten by another.
Predator / Prey populations will change in response to each other’s population.
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Predator / Prey
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Competition
…when 2 organisms or species have the same niche they will compete for resources.
The “loser” will either have to leave, get another niche or die.
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Symbiosis
…the relationship between different species living in close association with one another.
There are 3 types of symbiotic relationships.
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1) Mutualism
…both organisms benefit.
EX: Lichen (moss & algae), Clown fish & sea anemone
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Mutualism
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2) Commensalism
…one organism benefits, the other isn’t helped or harmed.
EX: Whales & Barnacles
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Commensalism
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3) Parasitism
…one organism benefits (parasite), the other is harmed (host)
Parasite- organism that gets nutrients at the expense of another organism or lives on / within another.
EX: tapeworms, pinworms, ticks, etc…
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Parasitism
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Parasitism
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The End