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Ecology Vocab

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Term
Defintion
Abiotic   an environmental factor that is not associated with the activities of living  
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Organisms   a living thing, anything that can carry out life processes independently  
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Biotic   an environmental factor that is associated with or results from activities of living organisms  
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Carbon Cycle   the movement of carbon from nonliving environment into living things and back  
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Commensalism   a relationship between two organisms in which one organism in which one organisms benefits and the other is unaffected  
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Competition   ecological relationship in which two or more organisms depend on the same limited resource  
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Consumer   an organism that eats other organisms or organic matter  
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Decomposer   an organism gets energy by breaking down the remains of des organisms or animal waste and consuming or absorbing the nutrients  
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Ecology   the study of the interactions of living organisms with one another with their environment  
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Ecosystem   a community of organisms and their abiotic, or nonliving, environment  
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Energy Pyramid   a triangle diagram that shows an ecosystems loss of energy, which results as energy passes through the ecosystems food chain; each row in the pyramid represents a trophic feeding level in an ecosystem, and the energy stored in that trophic level  
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Food Chain   the pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms  
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Food Web   a diagram that shows the feeding relationship between organisms in an ecosystem  
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Limiting Factor   an environmental factor that prevents an organism or population from reaching it's full population from reaching its full potential of size or activity  
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Mutualism   a relationship between two species in which both species benefit  
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Parasitism   a relationship between two species in which one species, the parasite, benefits from the other, the host, which his harmed  
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Predator   an organism that kills and eats all or part of another organism  
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Prey   an organism that is killed and eaten by another organms  
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Producer   an organism that can make it's own food by using energy from it surroundings  
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Symbiosis   a relationship in which two different organisms live in close association with each other  
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Water Cycle   the continuous movement of water between the atmosphere, the land, the oceans and living things  
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Niche   The role of species in its community, including use of its habitat and its relationship with other species  
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Habitat   The place where an organism usually lives  
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