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Life Science

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Term
Definition
Ecology   The study of relationships and the relation between the two in their environment  
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Ecosystem   all living plants, animals and nonliving things that share an environmet  
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Habitat   The place in which an organism lives and obtains the resources to survive  
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Biotic Factor   Is the living factor in an ecosystem for example: grass, plants, worms, bacteria, fungi  
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Abiotic Factor   Is the non-living factor in an ecosystem for example: water, sunlight, oxygen, temperature, soil  
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Population   A group of organisms of the same species living together in the same area  
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Community   The living part in an ecosystem  
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Niche   An organism's role in an ecosystem  
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Competition   The type of interaction in which organisms struggle with one another to obtain resources  
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Predation   An interaction in which one organism hunts an kills another for food  
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Predator   An organism that kills and eats another organism  
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Prey   An organism that is eaten by predators  
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Mutualism   A form of symbiosis in which both organisms benefit  
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Commensalism   A form of symbiosis in which one organism benefits and the other neither benefits nor is harmed  
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Parasitism   A form of symbiosis in which one organism benefits and the other is harmed  
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Producer   An organism that makes its own food (autotroph)  
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Consumer   An organism that cannot make its own food (heterotroph  
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Herbivore   An organism that eats only plants  
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Carnivore   An organism that eats only meat  
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Omnivore   An organism that eats plants and meat  
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Scavenger   A carnivore that feeds on the bodies of dead organisms  
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Decomposer   Organisms that break down wastes and dead organisms and return the raw materials to the environment  
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Food chain   A representation of a series of events in which food energy and matter are transferred from one organism to another  
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Food web   A diagram that consists of overlapping food chains  
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Energy pyramid   A diagram that shows the amount of energy that moves from one feeding level to another in a food web  
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Environment   All the the living and non-living things with which an organism may interact  
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Biome   A group of ecosystems with similar climates and organisms  
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Created by: Earth6
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