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ecology study terms science vocab # 4

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Question
Answer
niche   role of an organism in its ecosystem  
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food chain   shows where each species gets its food  
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energy pyramid   diagram showing how much energy flow is in a food chain  
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food web   group of overlapping food chains in an ecosystem  
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competition   happens when species depend on a limited energy supply  
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predator   animals that hunt and feed on other animals  
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prey   animals that are killed for food by other animals  
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symbiosis   interaction where 2 species live together and 1 benefits  
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biotic factors   living things that affect ecosystems  
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abiotic factors   non-living things that affect an ecosystem  
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community   all the different populations that live together in an area  
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population   a group individuals of the same species living in a given area  
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producer   an organism that can make its own food  
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consumer   organisms that eats other living things for food and energy  
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decomposer   a living thing that breaks down waste and dead things  
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