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science

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Population Density   Number of individuals in a populationthe occupies an area of limited size.  
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Limiting Factor   Any biotic or abiotic factor that limits the number of individuals in a population.  
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Symbiosis   Any close interaction among two or more different species, including mutualism, commenism, and paratism.  
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Niche   Role of an organism in the ecosystem including what it eats, how it interacts with other organisms and how it gets food or more.  
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Habitat   Place where an organism lives.  
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Ecology   study of all of the interactions among organisms and their enviroment.  
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Abiotic Factor   A non-living part of the enviroment, such as water, sunlight, tempeture, and air.  
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Biotic Factor   Any living or once living organism in the enviroment.  
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Population   All of the individuals of one species that live in in the same space at the same time.  
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Commmunity   All of the populations of different spheres in a given area that interacts in some way and depend on another for food, shelter, or other needs.  
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Ecosystem   All of the communities in a given area and the biotic factors with them.  
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Biosphere   Part of Earth that supports life; the top part of Earth's crust, all of the waters covering Earth's surface, and the surroundings atmosphere, all biome's ecosystem, communities and population.  
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Food chain   Model that describes how energy passes from one organism to another.  
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Food web   Model that describes how energy from food moves through a community, a series of overlapping food chains.  
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Water cycle   Continous cycle of water molecules on Earth as the rise into the atmosphere, fall back onto Earth as rain or other precipitation, and flow into rivers and oceans through the process of evaporation, condensation, and precipitation.  
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