Evolution of cetaceans

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    YR 10 Science Evolutionary Theory Alicia Horsfield Evolution can be defined as a gradual process in which a species changes into a different and more complex form. This happens over several generations. Evolution also proves that all species are related through genetic variation. (yourgenome.org, n.e). Charles Darwin (1809-1882) was an English Naturalist, famous for creating the theory of ‘evolution’. He also created a theory that species survive through a process called “natural selection”.…

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    Evolution When talking about evolution, people generally think of Charles Darwin as the originator or “father” of evolution. Even though Darwin may have opened the door for evolution and proved his hypothesis to be correct through his experiments, he had been influenced by many scientists before him. Although Darwin’s theory of natural selection is considered legitimate, there are many other theories to be equitable as well, much like the inheritance of acquired characteristics. Charles Darwin’s…

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    This period emphasized the self, creativity, imagination and the value of art. It was a movement that strongly emphasized emotion. It also legitimized ‘individual imagination' as a major authority. Which in turn gave rise to ‘free expression' in art. With such an emphasis on feelings and imagination many thinkers of this period introduced philosophies and theologies of their own on this topic. Richard Kearney in The Wake of the Imagination, explores the various concepts of imagining from the…

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    If a positive correlation is found between aggressive behaviour in adopted children and aggressive behaviour in their biological parents, a genetic effect is implied. However, if a positive correlation is found between the adoptee’s aggressive behaviour and the rearing family, then an environmental effect is implied. Although, research by Hutchings and Medinick suggests that environmental factors do not play a role in aggressive behaviour, as they found when looking at 14,000 adoptions in…

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    Into the Jungle: Great Adventures in the Search for Evolution is a novel by Sean B. Carroll built around nine different stories of scientific discoveries and how they all contributed to our current knowledge of the evolution of species. As one can infer from the title, the main biological concept dealt with is evolution. To explain and provide support for the theory, Carroll discussed two more concepts: natural selection and genetic mutations. Every one of the nine stories included in the book…

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    incest. As for human populations however, social rules and the placement of the taboo on the behavior are stronger factors (including punishments that are created to avoid incest). The paper investigates several theories that attempt to explain the evolution of incest avoidance and concludes that punishing violators of the taboo is costly however, the punishments aid to prevent sibling matings which a greater benefit; also, there is more evidence behind evolutionary hypothesises to avoid incest.…

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    The genetic disorder known as Cystic Fibrosis affects about 30,000 people in the us and about 70,000 in the world. The disorder can cause people to have many problems such as difficulty breathing, difficulty digesting food, and many other problems with the lung, pancreas, and many other parts in your body. The disease is caused by a defective gene called the CFTR gene. These genes code to produce CFTR proteins which are used to transport water and particles into or out of cells. This helps…

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    In the Natural Theology, William Paley uses an example of a self-replicating watch to argue for the existence of a universal creator. He believes that the universe, like the watch, has an innate, intricate design and as such, a designer. Paley argues that if the watch were capable of creating identical copies of itself his argument would not weaken, but actually be supported. For Paley this is because the watch itself is not responsible for its design or purpose, and merely passes these aspects…

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    Intelligent Design

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    Advocates of design then postulate that evolution can account for small, gradual adaptations which increase the fitness of an organism, such as a gradual change in fur color, but not for the sudden appearance of such complex structures as the vertebrate eye, which would entail an instantaneous development…

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    Introduction This experiment was performed to test the effects of different evolutionary forces on a population that would normally be in Hardy-Weinberg equilibrium. These three forces being tested will be tested individually, in pairs, and finally all three together. Hardy-Weinberg Equilibrium is the theory that a single gene in a population of diploid organisms will not change in allele proportions over generations as long as certain conditions are met. “Another generation of random mating…

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