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set#3

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Tropism   A plant response to a stimulus in its environment.  
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Dormancy   A period of rest in plants so that they can survive cold winter months or hot, dry summer months  
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Population   A group of one kind of organism (1 species) that live in one area at the same time  
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Community   All of the species living in one area at the same time (all of the biotic factors)  
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Ecosystem   All of the abiotic and biotic factors in an area  
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Biosphere   All of the ecosystems of the Earth put together  
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Symbiotic Relationship   A close, long-lasting relationship between 2 organisms of different species  
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Mutualism   Both of the organisms benefit from the relationship  
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Commensalism   One organism benefits and the other organism is unaware of the relationship (no benefit or harm)  
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Parasitism   One organism  
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Parasite   benefits and one organism  
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Host   is harmed by the relationship.  
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