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SLS Bio11 Ecology AV

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Term
Definition
Carrying Capacity   Number of individuals of a species a particular environment can support indefinitely  
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Cellular Respiration   metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine tand then release waste products.  
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Climax Community   An ecological community in which populations of plants or animals remain stable and exist in balance with each other and their environment  
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Commensalism   an association between two organisms in which one benefits and the other derives neither benefit nor harm.  
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Consumer   Consume food  
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Cyclic Growth    
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Decomposers   an organism, fungus, or invertebrate, that decomposes organic material.  
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Density Dependant Factors   factors where the effects on the size or growth of a population vary with the density of the population itself  
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Density Independant Factors   Any factor limiting the size of a population whose effect is not dependent on the number of individuals in the population  
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Ecological Succession   The observed process of change in the species structure of an ecological community over time  
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Energy Flow   The flow of energy through a biological food chain.  
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Exponential Growth   Growth whose rate becom more rapid in proportion to the growing total number or size.  
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Logistic Growth   Over time the population size increases until the population size equals the carrying capacity  
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Mutualism   Symbiosis that is beneficial to both organisms involved.  
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Parasitism   Non-mutual symbiotic relationship between species, where one species, benefits while the other is harmed  
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Photosynthesis   The process by which green plants use sunlight to synthesize foods from carbon dioxide and water  
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Pioneer Species   Species which are the first to colonize previously disrupted or damaged ecosystems  
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Population   Group of organisms of the same species occupying a certain area  
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Pyramid of Energy   a graphical model of energy flow in a community shaped in a pyramid  
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Steady State   unchanging condition in a physical process  
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Symbiosis   Interaction between two different organisms living in close physical association, typically to the advantage of both.  
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