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Symbiotic Relationships

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Term
Definition
Symbiosis   Two organisms of different species living together in a close relationship.  
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Predator   Animals that hunt and eat other animals.  
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Prey   Animals that are hunted and eaten by other animals.  
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Competition   When two or more organisms fight over a limited resource.  
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Cooperation   When organisms interact in a way that help each other.  
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Mutualism Description   both species benefit  
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Commensalism Description   one species benefits and one is unharmed  
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Parasitism Description   one species benefits and the other is harmed  
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Example of Mutualism   hummingbird and flower  
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Example of Commensalism   a remora attached to a shark  
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Example of Parasitism   mosquito on a human  
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Good Bacteria   When this is in a cow's stomach, it helps break down the cow's food; this is mutualism.  
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Golden Retrievers   Mrs. Goff has two of these; they make her very happy and she takes care of all their needs. This is mutualism.  
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Mistletoe   This parasite attaches to trees for nutrients and it kills the tree; this is parasitism.  
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Bed Bugs   These creatures come out at night to feed on human blood; this is parasitism.  
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Spider   This creature builds a web in a deer's horns; the deer is unharmed. This is commensalism.  
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Monarch   This butterfly lays its eggs on a milkweed plant; this is commensalism.  
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