Unit 2 Science DB Essay Example | Topics and Well Written Essays - 500 words

Unit 2 Science DB - Essay Example In the years 1981-2002, over 60% of the anticancer drugs on the market were produced from the genetic resources of our biodiverse plants and animals (Newman, Cragg & Snader 2003 p.1022). Biological diversity exists everywhere on the planet. However, the degree of diversity can be severely impacted by natural events and human interaction. Some of the most biodiverse ecosystems are the tropical rainforests of South America, Asia, and Africa. These locations have felt the effects of human impact and have been rendered far less diverse than in past centuries. Humans have deforested the Amazon basin for logging, cattle ranching, and agribusiness (Urquhart et al. n.d.). Genetic diversity is vital to the health of an ecosystem and the loss of biodiversity in this region is an alarm to the sustainability of human existence. When a natural disaster or human impact damages an ecosystem, this damage spreads to affect other parts of the ecology. The loss of a single species can lead to the loss of others that use it as a food supply. The habitat may be taken over by a species that suddenly loses a natural predator. The organisms responsible for feeding, fertilizing, and recycli ng our planet can be lost because of small changes to their environment. Biodiversity is essential for the future of humans on this planet. The minor changes in farming methods, development, pesticides, and herbicides can have a lasting and disastrous effect on our food supply. Alterations to rainforests can affect the weather and climate of the planet (NASA). Introduction of non-native species, such as the Salt Cedar in the western U.S,"[...] may have significant negative effects on water resources" (Invasive species 2005). To assure this does not happen, we need to measure our actions and limit the destruction to our environment. Technology, such as NASAs satellite that monitors invasive plants, should be supported (Invasive species 2005). Globalization makes

Social De-alignment in UK Essay Example | Topics and Well Written Essays - 3500 words

Social De-alignment in UK - Essay Example It has become popular through the recent years to view the voting patterns in the UK as less dependent on social attitudes and positions, rather than dependent on political factors. However, it is still under argument, whether social issues still play major role in defining voters' behaviours, as the present-day society has become more polarized. The electorate may be described as well-educated and informed mass of people, and it is often that its rational choice is based on the party's position, leadership, strategy and policy, not taking into account to which class the exact part of electorate belongs. This is the basis of the so called 'supermarket' model of voting, when the rational choice is based on the perceptions, which party will improve the life of the society while in Government. Thus the theory becomes active, when the leadership and personality of the candidate become increasingly significant for voters, and the political issues leave for the background. However, such th eories don't take into account the influence, which the media may make on the personality of each leader, and this influence may be both positive and negative, thus causing the electorate to make wrong choice. This work is to be concentrated on the social theories in voters' behaviour which take into account age, gender and class to which the voters belong, and assuming that these factors dictate the way the voter makes his choice. De-alignment 'Class is undoubtedly a significant factor when considering voting behaviour; traditionally two thirds of all voters chose their 'natural' class party, the working class favoring Labour and the middle class Conservative. However, since the1970s class de-alignment has begun, and the proportions of classes voting for particular parties have become more even, caused by embourgeoisement and the consequent decrease of in size of the working class'. (Curtice, 2002) This theory may be easily linked to the suggestion, that the voter's choice is becoming more tied to the place of his residence (the theories of voters' behaviour and the influence of neighbourhood will be discussed in this work), however, it is easily explained by the fact that the working class mainly occupies the northern part of the country, while the southern part belongs to the middle class. Simultaneously, it is interesting to note, that during the election campaign of the year 2001 the Conservatives lost most of their southern votes, which says there are some other factors except for class, which influence voters' choice. Another important social factor in defining voting preferences is gender. However, the proofs, which support this theory, are very inaccurate, as they don't account the gender equilibrium in the workforce and the attempts of different parties to concentrate their campaigns on childcare and health issues. It may be surprising not to note the influential role of the social factors in electorate behaviour, as Britain cannot be described as less class aligned. People still reflect their class preferences in their voting, though less attention has been paid to these factors, while they are still important and should be taken into account. To realize the importance of the social re-alignment and de-alignment in relation to the voting behaviours, it is necessary to provide the reliable argument as for the increasing social polarization in the society. According to Dorling (2006), 'housing wealth per child rose 20 times more in the best-off tenth as compared to worse-off tenth of areas in Britain 1993-2003; the majority of extra higher education places