Biology - Essay Example

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Exam 3 (Q #1) According to Darwin, complex organ and instincts continues to be perfected. This occurs through continuous accumulation of many slight changes, and each is good to individual. Due to this notion, Darwin made several postulates. Moreover, organs were said to have a slight variation in their degree…
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Download file to see previous pages Darwin observed that, in the preservation of favored individual and races, there is constantly recurrent struggle for existence. Consequently, more individuals are born than there is the warranty for survival. This determines the individuals going to die and those going to survive. This also determines the species to increase in number and species that would decrease in number and eventually become extinct. Also in face of competition, those individual species that are strong or have an advantage are more likely to have the subsequent offspring’s. Darwin theory of natural selection can be said to be confusing. The arguments based on this theory are actually confusing and sometimes misleading. Firstly, there is confusion on whether living forms have, or have no evolutionary origin. Secondly, Darwin suggestion that natural selection is the main factor of evolution may not be true. These two themes as found in Darwin book are confusing and above all misleading when discussed together. Before Darwin work, most people believed in theory of creation. Darwin work on science changed this and is incompatible with creation theory. This led to most people to view scientist as atheist (Mille and Loon 130-142). Exam 3 (Q #2) Aristotle indeed is one of the ancient scientists. Aristotle work demonstrated scientific ideas, which proved worth at the time. However, not a modern biologist Aristotle fits in the description of a great biologist. This is obvious as he tries to explain various biological phenomenon using scientific ideas of the time. Aristotle work had many biological facts and he followed methods before jumping into conclusion. Aristotle stressed on importance of methods in scientific knowledge. Aristotle effort can be deduced from grouping of both plant and animal kingdom. Von Linne work still had the basis of Aristotle work. Therefore, Von Linne was also a true scientist based on description of living things. Species and genera are an important concept and a basis of biology. Linne ensured there was proper identification of plant and animal based in classification of both into genera and species. Binomial nomenclature used until today was Von Linne effort and therefore deserves full credit in science. Taxonomy is an important branch in biology and simplification of taxonomy by Von Linne was important to classification and identification of plant and animals. Lamarck contribution to evolution was also great. His work revolved around the theory of inheritance. LaMark idea on continuity of species was crucial to biological development. Species diversity was also part of Lamarck ideas as to development of species. Lamarck work though with discrepancies was a benefit to the naturalist on one important problem in the whole range of biological thought. These people would still be scientist today, the only limitations they had was lack of material and equipment that exist today. Exam 3 (Q #3) The sole purpose of science is to explain and describe all what surrounds us. The aim of science is to unearth the mystery of the world and tries to give meaning to worldly things and occurrences. Science does not believe in ambiguity and claims there is a reason for something existence. Science does not believe in ignorance of nature and the natural world. Science give meaning to trend of the world and foretell what is likely to happen or take place in future. Science is also a source of hope to the world and helps in ...Download file to see next pagesRead More
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Those variations that are better suited to survive in a particular environment are selected by nature through the process of natural selection. These organisms in turn produce offspring’s with similar traits and better adaptation to survive. This contributes to the process of evolution.
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