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Life sci

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Term
Definition
Ecology   the study of the interactions of organisms with one another and with their environment  
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Biotic   these are all the living organisms on earth.  
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Abiotic   these are all the nonliving factors of the environment  
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Organism   any living thing with one or more cells.  
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Habitat   the area where an organism lives its life including the living and nonliving factors.  
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Population   all the individuals of the same species that live together in one place at the same time.  
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Community   all the populations of species that live in the same habitat and interact with each other.  
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Ecosystem   populations and abiotic factors with which they interact in the setting of a community.  
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Biosphere   the part of the earth where life exists.  
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Producer   this is an organism that supplies matter and energy, also known as an autotroph.  
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Consumer   this is an organism that relies on other organisms for its food and energy supply; also called a heterotroph.  
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Decomposer   this is an organism that breaks down and gains nutrients from dead organisms.  
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Herbivore   an organism that eats only plants.  
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Cornivore   an organism that only eats animals.  
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Omnivore   an organism that eats both plants and animals.  
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Food Chain   the pathway of energy transfer through various stages as a result of feeding patterns of a series of organisms.  
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Food Web   a diagram that shows the feeding relationships between organisms in an ecosystem.  
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Energy Pyrimad   a triangular diagram that shows an ecosystem’s loss of energy, which results as energy passes through the ecosystem’s food chain.  
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