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SLS Bio11 Ecology JE

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Term
Definition
Carrying Capacity   The number of people or other living organisms, or crops that a region can support without environmental degradation  
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Cellular Respiration   Metabolic reactions that use the energy primarily from carbohydrate but also fatty acid or amino acid breakdown ATP molecules  
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Chemical Equations   A symbiotic representation of what happens when chemicals come in contact with one another  
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Climax Community   Community that results when succession has come to an end  
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Commensalism   Relationship where one species benefits and the other is neither harmed nor benefited  
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Consumer   Organism that feeds on other organisms in a food chain; p consumers eat plants, And S consumers eat animals  
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Cyclic Growth   The food cycle growth  
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Decomposer   A bacteria or fungus that breaks down other organic matter into nutrients that are then recycled into the environment  
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Density-Dependant Factors   Biotic factor sush as disease and competition, that affects population size according to the populations density  
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Density-Independant Factors   Abiotic factors such as fire and flood that affect population size independent of the population density  
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Ecological Succssion   The gradual process by which ecosystems change and develop over time. Nothing remains the same and habitats are constantly changing  
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Energy Flow   Gradual replacement of communities in an area following a disburance (sec). Or creation of new soil (pri)  
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Logistic Growth   Occurs when the growth rate decreases as the population reaches carrying capacity  
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Mutualism   A relationship where both organisms benefit  
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Parasitism   A relationship in which one species (parasite) in terms of growth and reproduction to harm the other species  
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Photosynthesis   Process where plants make their own energy from the sun  
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Pioneer Species   Are a hardy 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 in the ecosystem  
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Producer   Photosynthetic organism at the start of a grazing food chain that makes its own food. eg. Plants , trees, flowers, bugs, etc  
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Products   Substance that forms as the result of a reaction  
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Pyramid of Energy   Shows the energy flow in an ecosystem  
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Reactants   Substance that participates in a reaction  
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Steady State   Is a more general situation than dyanamic equilibrium  
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Symbiosis   Relationship that occurs when 2 different species live together in a unique way it may be beneficial, neutral, or detrimental to one and or the other species  
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Exponential Growth   Growth particularly of a population in which the increase occurs in the same manner as compound interest  
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Created by: jerskine
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