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5th Grade Ecosystems

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Question
Answer
ecology   science concerned with the relationship of living things to each other and to their natural environment  
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ecosystem   An interconnected community of organisms interacting with and depending on one another and the physical environment  
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environment   everything that surrounds an organism and influences it  
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food chain   a graphic which traces energy flow in an ecosystem; for example: sun>;water plants>;fish>;raccoon  
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model   A small-scale version of a system that shows how the system works.  
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organism   a living thing  
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adaptation   a change in order to fit a new situation or use  
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biodiversity   a wide variety of organisms  
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carnivore   a consumer which gets its energy by eating only meat/animal flesh  
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consumer   An organism that gets energy from eating other organisms.  
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fertile   rich in nutrients  
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forest   An area of land densely populated with trees.  
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germination   process by which seeds swell up and begin to sprout and develop roots  
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grassland   A large  
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herbivore   a consumer which gets its energy by eating only plants and vegetation  
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omnivore   a consumer which gets its energy by eating both plants and meat/animal flesh  
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producer   an organism that can make its own food through the process of photosynthesis  
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terrarium   a closed glass or plastic container where terrestrial (land) organisms can live and be observed  
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terrestrial   Having to do with land or the Earth.  
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aquatic   Having to do with water.  
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decomposer   An organism that gets its energy from breaking down decaying organic material. The role of decomposers is the recycling of nutrients throughout the ecosystem.  
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photosynthesis   The process by which plants use carbon dioxide and sunlight to create sugar for themselves for food  
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producer   Any organism that makes its own food from the sun's light using photosynthesis.  
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radiation   A way that heat energy can travel. Radiation occurs when heat energy leaves its source and travels through water or air to reach its destination.  
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consumer   An organism that gets energy from eating other organisms.  
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decomposer   An organism that gets energy from breaking down decaying organic material. Decomposers are responsible for recycling nutrients in an ecosystem.  
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food chain   The way energy flows in a straight line as it passes from one organism to another.  
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niche   The specific role an organism plays within its ecosystem.  
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symbiosis   A close, prolonged relationship between two organisms of different species that may benefit the organism, but may not  
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niche   An organism's specific role within an ecosystem that it has adapted to in order to survive.  
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symbiosis   A close, prolonged relationship between two different species where one or both species may be helped to survive by the other.  
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pollutant   A substance which when introduced into an ecosystem has a negative effect on the organisms living within.  
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control   The variable in an experiment which is kept the same to ensure accuracy.  
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Fair Test   An experiment where only one thing is changed  
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variable   The element of an experiment that is changed or tested.  
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