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Intro Unit

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
abioticfactor   Nonliving factor in the environment  
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bioticfactor   Living factor in the environment  
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commensalism   one benefits the other is unaffected  
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ecology   study of interactions of organism and their environment  
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ecosystem   biological community and all the abiotic factors that affect it  
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habitat   area where an organism lives  
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mutualism   both organisms benefit  
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niche   role of an organism in its environment  
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parasitism   one benefits the other is harmed  
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population   organisms of one species that live in the same place at the same time  
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predation   one organism consuming another  
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symbiosis   two organisms living in a close relationship  
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autotroph   organism that produces its own food  
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biomass   total mass of living matter at each trophic level  
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carnivore   eats only animals  
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detritivore   eats fragments of dead matter, returning nutrients to ecosystem  
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foodchain   simple model that shows how energy flows through an ecosystem  
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foodweb   model representing interconnected food chains  
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herbivore   eats only plants  
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heterotroph   organism that gets energy from other organisms  
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omnivore   eats plants and animals  
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trophic level   step in a food chain  
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nutrient   chemical substance that an organism must obtain to sustain life  
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Carrying Capacity   size of population that an environment can support  
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Cellular Respiration   Break down of sugar with oxygen to get energy  
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Chemical Reaction   Converting of matter from one molecule to another  
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Competition   2 or more individuals trying to acquire the same resource  
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Consumer   An organism that eats another organism for energy  
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Exponential Growth   Steepest period of growth in a population suggesting abundant resources  
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Limiting Factor   Resource that is not abundant enough to support a larger population  
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Photosynthesis   Building sugar molecules from carbon dioxide and water using energy from the sun  
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Producer   organisms which generate sugars through photosynthesis or chemosynthesis  
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Product   Molecules on the right side of a chemical equation (end)  
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Reactant   Molecules on the left side of a chemical equation (start)  
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Scavenger   Organism which gains energy from eating dead organisms  
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Created by: mrbstp
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