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Population Ecology AP Bio Flashcards

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10467555171Uniform distributionresults from intense competition of antagonism between individuals0
10467557088Random distributionoccurs when there is no competition, antagonism, or tendency to aggregate.1
10467618337Clumpingis the most common distribution because environment conditions are seldom uniform.2
10467623533Adaptive radiationthe diversification of a group of organisms into forms filling different ecological niches.3
10467680984Logistic population growthoccurs when the growth rate decreases as the population reaches carrying capacity (represented by an S shaped curve on a graph)4
10467685320Carrying capacityis the maximum number of individuals in a population that the environment can support.5
10467690763Exponential population growthwhen the resources availability is unlimited in the habitat, the population grows at a constant rate. (represented by a J shaped curve on a graph)6
10467909549Disruptive selectionextreme traits are favored over intermediate traits7
10467911379Stabilizing selectionintermediate traits are favored over extreme traits8
10467917634Directional selectiona single phenotype is favored causing a shift in one direction towards one of the two extreme phenotypes.9

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