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Ecology Vocabulary

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Term
Definition
Ecology   the study of the interactions that occur among organisms and their environments  
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Biosphere   -part of the Earth that supports life -includes the top portion of the Earth's crust, waters that cover the Earth's surface and the atmosphere  
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Population   made up of all members of the same species that live in the same ecosystem at the same time  
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Community   all the populations of all species living in an ecosystem  
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Habitat   the place in which an organism lives ex. trees are a woodpecker's habitat  
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Ecosystem   consists of all the organisms (grass, birds, insects) living in an area, as well as the non-living parts (water, temperature, sunlight, soil etc.)  
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Biome   large geographic areas with similar climates and ecosystems  
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Species   a particular group of animals or plants that are similar and can produce young animals or plants  
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Niche   refers to the unique ways an organism survives, obtains food and shelter and avoids danger  
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Food Chain   a sequence of who eats whom  
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Food Web   model that shows the complex feeding relationships among organisms in a commmunity  
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Producer   an organism such as a green plant that uses an outside source of energy such as the Sun to create energy rich food molecules  
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Consumer   the need for animals to obtain food to get energy  
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Predator   an organism that eats another organism  
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Prey   an animal hunted or caught for food  
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Herbivore   plant eater  
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Carnivore   meat eater  
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Omnivore   an animal that eats both plants and other animals  
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Decomposer   breaks down dead plants and animals and then turns them back to the soil  
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Symbiosis   the relationship between two different kinds of living things that live together and depend on eachother  
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Mutualism   a type of symbiotic relationship between two organisms in which both organisms benefit  
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Commensalism   a relationship between two types of organisms in which one obtains food or other benefits and the other organism is not affected  
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Parasitism   a type of symbiotic relationship in which one organism benefits and the other organism is harmed  
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Created by: cneeson
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