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Environmental Science

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AP Environmental Science
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Calculate Doubling Time

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It is very simple to calculate the doubling time of a population (the time it takes for that population to double based on a consistent growth rate). You use the rule of 70 doubling time = 70/% growth rate note: do not convert the percent to a decimal when calculating doubling time. leave it as it is ie: a population of 300 people growing at a rate of 2% a year will take 35 years to double (70/2 = 35)

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Apes study guide Key Laws: ? Salmon Recovery - The Wild Salmon Recovery Initiative is intended to influence federal, state, and local agencies to fully implement and comply with the Endangered Species Act, the Clean Water Act, and other local, state, and federal statutes. Wild Fish Conservancy?s staff of professional advocates analyze and draft reviews of policy proposals, watch-dog public agencies, participate on recovery forums and technical-review teams, work directly with resource-management officials, establish and participate in coalitions with other regional and national conservation advocates, develop information/action campaigns, and where necessary, litigate to implement and defend the laws intended to protect our wild fish heritage.

Biodiversity, Specias Interactions, and Population Control

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A reflection piece

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Sara Katherine Johnson APES 5th period September 2, 2010 The 11th Hour Reflection In the film The 11th Hour the documentary flashes between scenes of a chaotic, fast-paced, death cycle. It?s a film showing the oldest fight of humans against nature and the unraveling of the ecosystems. The basic message is- Nature has rights and needs too.

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