1. Before you read‚ decide which of three explanations for the extinction of the dinosaurs you like best. Write an explanation of why you like it. Sex: Testes function only in a narrow range of temperature. (Those of mammals hang externally in a scrotal sac because internal body temperatures are too high for their proper function.) A worldwide rise in temperature at the close of the Cretaceous period caused the testes of dinosaurs to stop functioning and led to their extinction by sterilization
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INTEGRATION Similar cases have made us understand that the willingness/unwillingness of firms to exploit IT capabilities could have significant effects. 1- The Crisis at Encyclopedia Britannica We would recall the refusal of Britannica to partner with Microsoft on a multimedia CD-ROM version of the encyclopedia‚ owing to its “traditional way of selling. They regarded an IT initiative that would have reduced the cost of printing encyclopaedias as one that would ‘both cannibalize revenue and reduce
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vacation. Iridium was the venture that Motorola invested in. They basically invested half a billion dollars into this venture and it concluded that the service was too expensive because there were very few people using it as the connection was very poor. The cellular phone market was very successful and while the idea of phones that could work anywhere on earth was good for people in rural areas‚ there were not enough people living in these remote areas to make it a profit making business. Iridium filed
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article is plausible‚ but some of these concepts‚ may not provide enough evidence to conclude the argument‚ but one idea stands out the meteor impact. With the meteor impact‚ a chemical was found‚ iridium‚ which is not indigenous to certain areas on Earth. Coincidently the meteor had high concentrations of iridium causing a spark in interest for the science community‚ unlike the other two. Studies cannot be conducted on any of the dinosaur’s fossils to prove whether or not they over-heated or over-dosed
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Chapter 3: The Marketing Environment |What’s Ahead | |The Company’s Microenvironment | | |The Company | | |Suppliers | | |Marketing Intermediaries | | |Customers | | |Competitors
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1.) Were the North American megafauna wiped out by early human colonizers? The Overkill hypothesis is of the Clovis crossing into a “virgin continent” (The America’s) and wiped out the megafauna due to overhunting. First developed by Paul Martin in the 1960’s‚ Clovis started to occupy North and South America 13‚500-12‚500 years ago; soon after early sites were established 17 genera of North and South American megafauna went extinct between 13‚250-12‚900 (other species such as ground sloths become
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Geol. Rundsch.‚ 78(2): 649-677.<br><li>Bramlette‚ M. N. 1965. Massive ectinctions in biota at the end of the Mesozoic time. Science 148: 1696-1699.<br><li>Clark‚ D.L.‚ Wang‚ C.-Y.‚ Orth‚ C.J. and Gilmore‚ J.S.‚ 1986‚ Conodont survival and the low iridium abundances across the Permian-Triasic boundary in south China‚ Science‚ 233 (4767): 984-986.<br><li>Erwin. D. H.‚ 1993. The Great Paleozoic crises: New York. Columbia University Press. <br><li>Eshet‚ Yoram.‚ Rampino‚ Micheal.‚ and Henk Visscher.‚
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Expirement 1 Fluid Properties: Density and Surface Tension Table of Contents: OBJECTIVE 1 THEORY 2-3 PROCEDURE 4-6 RESULTS 7-8 DISCUSSION AND CONCLUSION 9 APPENDIX 10 OBJECT: The object of this experiment was to determine the density of a fluid by performing three different methods and use that determined density to calculate the surface tension of the fluid. THEORY: The density of any substance is defined as the mass per unit volume and is denoted by ρ. ρ = m / V (1) m is the mass
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Assignment Front sheet BTEC National Extended Diploma in Applied Science Unit: 20 Medical Physics Techniques Assignment Number:4 Radiotherapy & Radiation Protection Subject /Unit Teacher: Adrian Greaves Tutor & Tutor Group Student Name: KamenStanchev Feedback Date(s): Date Received: Final Hand-in Date: Student declaration : I declare that the work submitted is my own and has not been lent to anybody else or copied from them; that all internet and other references have been acknowledged. or
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Scientists took many samples from peat levels of the area. These findings show that heavy levels of nitrogen and carbon isotopes 15N and 13C were in the soil. The highest accumulations occurred near the epicenter of the blast. These samples also showed iridium and nitrogen in the peat layers. This means that tons of acid rain had poured on the surface. This would be caused by the high temperatures at the time of the blast. The temperatures would cause oxygen in the atmosphere to combine with nitrogen
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