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Chapter 6 APES

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   show
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show All of the population of organisms.  
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show The study of factors that cause populations to increase or decrease.  
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show The total number of individuals within a defined area at a given time.  
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show The number of individuals per unit area at a given time.  
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Population distribution   show
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show The ratio of males to females in a population.  
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show A description of how many individuals fit into a particular age categories in a population.  
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Limiting Resource   show
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Density-dependent factor   show
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show A factor that has the same effect on an individuals probability of survival and the amount of reproduction at any population size.  
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show The total capacity for a population to be sustained.  
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Population growth models   show
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show The number of offspring an individual can produce in a given time period, minus the deaths of the individual or its offspring during the same period.  
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show The max. potential for growth of a population under ideal conditions with unlimited resources.  
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Exponential growth model   show
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J-Curve   show
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Logistic growth model   show
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show The shape of the logistic growth model when graphed.  
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Overshoot & Die-off   show
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K-selected species   show
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r-selected species   show
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Survivor-ship curves (I, II, III)   show
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show A group of spatially distinct populations that are connected by occasional movements of individuals between them.  
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shifting agriculture   show
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desertification   show
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nomadic grazing   show
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show agriculture that fulfills the need for food and fiber while enhancing the quality of the soil, minimizing the use of nonrenewable resources, and allowing economic viability for the farmer  
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show an agricultural method in which two or more crop species are planted in the same field at the same time to promote a synergistic interaction  
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show an agricultural technique in which crop species in a field are rotated from season to season  
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agroforestry   show
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contour plowing   show
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perennial vs annual plant   show
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no-till agriculture   show
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show an agricultural practice that uses a variety of techniques designed to minimize pesticide inputs  
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show production of crops without the use of synthetic pesticides or fertilizers  
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show a fishery management program in which individual fishers are given total allowable catch of fish in a season that they can either catch or sell  
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show farming aquatic organisms such as fish, shellfish, and seaweeds  
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