Act 8.1 Population Curves

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Charlene Mae Mondares Period 1 March 16, 2013 Biology Act 8.1: Population Curves A. Purpose: To map out population information to anatomize trends in changes in population. B.Prediction: POPULATION SIZE OVERTIME C. Introduction: Population of any organism will grow when they are given a good amount of resources and safe environment. If you had pets like hamsters or rabbits, you may know about population growth. They reproduce quickly and you would have a large amount of animals to take care of if you kept all of the newborns. Linear growth is a type of growth pattern where a population increases by the same amount at regular intervals, such as each month, year or decade. A population increasing by two individuals every month is an example of a linear growth. 2,4,6,8,10,12,14.. is the pattern that population data collects monthly and follows. A straight line is produced from the data when plotted on a graph. This can be described by the mathematical equation y=2x. Y represents the population size, x represents time 2 in the number of individuals added during each time interval from the equation y=mx+b, data for any linear population growth can be described. Y represents the population size, x represents time, m represents the number of individuals added during each time interval and b represents the initial population.\ The number of individuals joined to the population increases at each time interval when a population exhibits exponential growth. 1,2,4,6,8,16,32,64,128.... is a pattern that a data set for a population that is growing exponentially. The curve resembles the letter “J” called the J­curve when plotted on a graph. The equation for the sample data set just given, in which the population doubles during each time interval is

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