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Effects on the Environment




Effects on the Environment" Please respond to the following;Note: Online students, please respond to one (1) of the following four (4) bulleted items.;Prior to the arrival of Europeans, the common nightcrawler, an annelid worm, was absent from much of the North American continent. Apparently, it had been wiped out by the glaciers of the last Ice Age. Use the Internet or the Strayer Library to research how the introduction of earthworms to North America occurred in the so-called ?Columbian Exchange.? Discuss your findings. Based on what you researched, give your opinion about how it affected the environment.;With antibiotic resistance rising, researchers are looking for ways to reduce use of these drugs. Some cattle once fed antibiotic-laced food now get feed that includes helpful bacteria that can live in the animal?s gut. The idea is that if a large population of beneficial bacteria is in place, then harmful bacteria with the same resource needs are less likely to thrive. Explain why this idea makes sense in terms of species interactions and provide an example with your response.;Analyze the impact that the extinction of a species will have on an environment. Determine what you believe to be the most significant impact, and explain why.;Go to The New York Times Website to read the article titled ?Taking advantage of a destructive insect's weakness for purple?, dated September 12, 2011. Describe how the collection of knowledge about the Ash borer's ecology and behavior are helping to control infestations of this non-native species. All of these efforts cost money. As a citizen, determine whether or not you believe that the time and effort spent collecting this information is worth it, and explain why.


Paper#16214 | Written in 18-Jul-2015

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