population growth
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Mutations are the origin of genetic diversity. Mutations introduce new traits, while selection eliminates most of the reproductively unsuccessful traits. Sexual recombination of alleles can also account for much of the genetic diversity in sexual species. In some instances, population size can affect diversity and rates of evolution and fixation, but in other cases population size does not matter.
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Environmental Politics and Law (EVST 255) The lecture reviews the legal and economic strategies that can be used to manage coastal development. Over half of the United States population lives in coastal areas and will be affected by sea level rise and more intense storms. The lecture looks at the conflict between property rights and efforts to protect coastal ecosystems through the use of eminent domain to create national seashores. Bar...more
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Early Modern England: Politics, Religion, and Society under the Tudors and Stuarts (HIST 251)Professor Wrightson traces the major economic expansion of the late sixteenth and early seventeenth centuries. Despite occasional crises of mortality, population levels rose steadily, particularly in urban areas. Increased population levels resulted in enhanced agricultural and industrial output. Professor Wrightson reviews the extension of the cul...more
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Early Modern England: Politics, Religion, and Society under the Tudors and Stuarts (HIST 251)Professor Wrightson surveys the changing economic landscape of early modern England in the early sixteenth century. He notes that, throughout the period, population levels rose and, at the same time, inflation caused a rise in prices, and real wages fell. While many landowners were able to raise rents on their lands and profit from enclosing land, ...more
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Introduction to Evolution, Variation in a Population and Natural Selection
Khan Academy / Philosophy
Introduction to evolution, variation in a population and natural selection.
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If there was any single belief that characterized the Victorian era it was Christian belief. Religion pervaded social and political life to an extent almost unimaginable today. Yet this was also an age of major scientific progress and discovery. Ranging from Darwin's Origin of Species to Strauss's Life of Jesus, new techniques and approaches undermined faith in the literal truth of the Bible. This lecture looks at the relationship betwe...more
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Concerns about low fertility have been present in many countries for at least 100 years. A large population was considered essential to national power. But the issue is never simply a shortage of warm bodies: overall the world population has increased dramatically over this period and untold numbers would immigrate, if allowed. The issue is the number of the 'right sort' of people, defined as those having preferred national, religious, rac...more
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Hypothesis Test Comparing Population Proportions.
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Thompson talks about how the cheapest form of growth is organic growth. We will be in the market again soon, he adds.
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Early Modern England: Politics, Religion, and Society under the Tudors and Stuarts (HIST 251)Professor Wrightson reviews the consequences of the economic and population changes discussed in the last lecture. While economic shifts allowed some members of English society, especially members of the gentry and the land-holding classes, to increase their wealth, they also (coupled with an expanding population and price inflation) resulted in th...more
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Early Modern England: Politics, Religion, and Society under the Tudors and Stuarts (HIST 251)Professor Wrightson discusses the remarkable growth of the British economy in the late seventeenth and early eighteenth centuries. He examines the changed context of stable population and prices; regional agricultural specialization; urbanization; the expansion of overseas trade both with traditional European trading partners and with the Americas ...more
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Exponential growth involving bacteria (some calculus in part c).
