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Interactions of Living Things

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Term
Definition
ecology   Study of how different organisms interact with one another and their environment  
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biotic   The living parts of the environment  
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abiotic   The non-living parts of the environment  
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population   A group of individuals of the same species in the same area  
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community   All the different populations that live and interact in the area  
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ecosystem   A community and its abiotic environment  
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biome   The part of the earth where life exists  
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producers (autotroph)   organisms that use sunlight directly to make food  
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photosynthesis   process that producers go through to use sunlight to make food  
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consumer (heterotroph)   an organism that eats other organisms  
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herbivore   a consumer that eats only plants  
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omnivore   a consumer that eats both plants and animals  
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carnivore   a consumer that eats only animals  
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scavenger   omnivore that eats dead plants and animals  
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decomposers   organisms that get energy by breaking down dead organisms  
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competition   When 2 or more organisms or populations try to use the same resource, such as sunlight, water, space, food, shelter  
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predator   an organism that kills and eats all or part of an organism  
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prey   an organism that is killed and eaten by another organism  
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adaptations   camouflage, mimicry, defensive chemicals and warning coloration are examples of this  
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symbiosis   a close, long-term association between two or more species where at least one organism benefits.  
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mutualism   a symbiotic relationship in which both organisms benefit  
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commensalism   a symbiotic relationship in which one organism benefits and the other is unaffected  
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parasitism   a symbiotic relationship in which one organism benefits and the other is harmed  
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parasite   The organism that benefits in a parasitic relationship  
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host   The organism that is harmed in a parasitic relationship  
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Created by: tlindstrom
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