Evolution Theories

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• Question 4 Discuss the Theory of Neoteny in Relation to Human Evolution Question 7 the Average Sense Difference Between Two Individuals Increases as They

  ...INSTRUCTOR: MR MWANANZILA, F. PARTICIPANTS S/NO | NAME | REGISTRATION NUMBER | 1 | MWAIPOPO JACKSON | 2009/1393 | 2 | JOHN VENANCE | 2009/1406 | 3 | HALISON YELIKO | 2009/2541 | 4 | ERASTO GASPAR | 2009/2224 | 5 | SSENTONGO RENATUS | 2009/0421 | 6 | MAXIMILIAN TUNGARAZA | 2009/0134 | 7 | SAMWEL RAPHAEL | 2008/0806 | QUESTION 4 Discuss the theory of neoteny in relation to human evolution QUESTION 7 The average sense difference between two individuals increases as they are sampled from the same local population, two separate [populations, two species, two genera and so up to kingdom (such as plants and animals) up to approximately what stage in this sequence can evolution be observed in human life time SUBMISSION DATE; 16th May 2012 (a)Molecular evolution comprises of two terms molecule and evolution. A former term implies as an aggregate of at least two atoms in a definite arrangement held together by special force whilst a latter (evolution) refers to all changes that have transformed life on earth from its earliest beginning of the diversity that characterizes it today. Hence molecule evolution is regarded as the study of the evolutionary patterns and processes of nucleic acids and proteins, as well as the use of these molecules in studies of phylogenetics, population genetics, biogeography, and other areas of research and at different...

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• Essay on Darwin and His Theory of Evolution

  ...Darwin and His Theory of Evolution Tamitha Chavez South University Online Darwin and His Theory of Evolution Charles Darwin was an English naturalist born February 12, 1809. Darwin was interested in how both man and plants came to be the way they are currently. After a great deal of research he wrote a book titled On the Origin of Species by Means of Natural Selection, which was published in 1859. Through this book, Darwin created the term “descent with modification”, or what we now call “evolution”. According to Simon, Reece, & Dickey, the process of natural selection is one in which “the environment “selects” only certain heritable traits from those already existing” (Simon, Reece, & Dickey, 2013). This process is commonly called adaptation. It is through this process that many species survives generation from generation. Darwin came about this theory through two primary observations, those of “overproduction and competition” and “individual variation” (Simon, Reece, & Dickey, 2013). The observation of overproduction and competition showed Darwin that all species have the potential of reproducing an overabundance of offspring that the environment cannot hope to be able to support. This overabundance of a life form causes a certain amount of competition among the life forms that are occupying said area. As a species, humans see individual variation on a daily basis....

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• Evaluating the Theory of Evolution Essay

  ... The theory of evolution was created to explain the existence of different species and the variations within one. The theory states that the change in one organism’s genetic makeup in a population over time occurred due to natural selection, mutations, and more. It includes ideas such as adaptation (the change in an organism’s structure/behavior to become more suited for their environment), natural selection (otherwise known as survival of the fittest), and descent from a common ancestor (all organisms found on Earth have descended from a common ancestor). These ideas have derived from several biologists such as Jean Lamarck, Alfred Russel Wallace, and Charles Darwin. Although their thoughts differ from one another, their knowledge had greatly contributed to science, specifically in the study of evolution. Jean Lamarck was one of the first scientists to publish his work on the study of adaptations made by all of the organisms found on Earth as an effort to survive and be better suited for their environment. It should first be recalled that adaptations are the changes made by an organism to have a better chance at survival in their environment. The first thought about how those adaptations came about were not about genetics, but an organism’s behavior instead. During Lamarck’s time, the idea of genetics was not yet perfected. Lamarck stated a new environment would lead to changes in one’s activity resulting in “the...

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• Darwin s Theory of Evolution Essay

  ...Darwin’s Theory of Evolution Biology 1020 Jamison Lanier South University Online Professor Ott Darwin’s Theory of Evolution Darwin’s Theory of Evolution, stems from his book On the Origin of Species published in 1859, and seeks to explain the origin of life on Earth and the origin of different species. According to the theory, life began billions of years ago when a self-replicating molecule was organized by a group of chemicals, purely by chance. The basic premise is that all life is related and has descended from a common ancestor. Everything from the animals in the sky, waters, and on land are all related, from plant life to humans. Darwin believed that living developed from non-living and puts great importance on descent with modification. More complex creatures have evolved from more simplistic ones naturally over time. Beneficial mutations are preserved because they aid in survival, when random genetic mutations occur. This happens when physical and behavioral changes occur at the level of DNA and genes. Darwin calls this process natural selection. These changes would allow for better survival and often more offspring being born. Generation after generation pass on the beneficial mutations. Once the organism passes on so many mutations, they accumulate and can form an entirely different organism. Natural selection can change the organism in...

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• Why Evolution Theory Should Be Taught Research Paper

  ...Evolution Theory should be taught at schools.Whenever various debates have taken place in parts of the country regarding whether evolution should be taught in schools, I have always observed the situation with a degree of skeptism; the education I received never attempted to dissuade us from learning about evolution, and while none of my classes ever taught evolution with as much depth as Ernst Mayr attempted to convey in What Evolution Is, both systems taught it as a fact – one that we took for granted. The debate on the use of the word "evolution" in the Georgia school system initially appeared to to be an irony of anti-evolution tendencies, although Superintendent Kathy Cox has not commented on the theory of evolution itself; "the unfortunate truth," stated Cox as her rationale, "is that 'evolution' has become a controversial buzzword that could prevent some from reading the proposed biology curriculum" (Gross A10). Whatever her own beliefs on the subject are, however, the elimination of the term "evolution" may provide cool comfort to the theory's opponents, but its overall effect is merely to hamper the student's understanding of what evolution entails. Evoultion should be taught in schools because simply changing the wording of evolution and vaguely covering it will only...

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• Evolution Essay

  ...Evolution is the study of how modern organisms have descended from the earliest life-forms and of the genetic, structural, and functional modifications of a population that occur from generation to generation. The ability of a population of organisms to respond to change in their environment and survive and reproduce by developing the characteristics or modifications necessary for survival is known as adaptation. Understanding how life evolves is a central concept in biology. The incredible diversity of living organisms that exists and their adaptations to their environment are the direct result of evolution that has occurred over very long periods of time. Many scientists have contributed to our modern-day understanding of evolution. One of the early pioneers of evolution was the French biologist Jean Baptiste de Lamarck. Working in the early 1800s, Lamarck compared fossilized forms of invertebrate organisms and noted that younger fossils showed advanced structural characteristics compared with older fossils. Lamarck suggested that younger fossils displayed adaptations, or modifications of structures, that were indicative of an increase in an organism's complexity. He proposed that these modifications arose from the use or disuse of body parts. He also hypothesized that certain structural features developed in response to an organism's environment and that many of these acquired characteristics could be inherited...

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• Lamarck s Influence on the Development of Darwin s Theory of Evolution Essay

  ...Lamarck's Influence on the Development of Darwin's Theory of Evolution Dec. 4 1996 Marc Weinstein There have been many ideas on the theory of evolution. Some simply take our existence for granted, others prefer to explain all evolution in terms of the bible and the presence of a God. However, there are those who have researched the topic of evolution and have offered an explanation as to where a species comes from and how they evolved in the manner that they did. This type of science has been studied for a very, very long time, and one of the most famous minds in the field of evolution was a man named Charles Darwin. Darwin was not the first one to offer theories on evolution. There have been many scientists who preceded him. These earlier evolutionists came up with models of evolution that were unfortunately unworkable. One of these early pioneers was Jean- Baptiste Lamarck. Lamarck believed in deism and advocated natural religion based on human reason. He believed in the harmony and rationality of the world. And although flawed, the work of Lamarck did not go unnoticed, however. Darwin also believed in the harmony of the world, and it was Darwin himself who said that Lamarck was the first man whose conclusions on evolution brought about excitement and attention. He was the one who showed law in organic and inorganic...

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• The Evolution of Whales Essay

  ... The Evolution of Whales “Their tongues alone can weigh as much as an elephant and their hearts as much as a car.” The animal called whales what are the largest, intelligent and aquatic mammals. However, whales were not the aquatic animals at the beginning. After thousands of years of evolution, since changes in the terrestrial environment and the demand for food, the whales become appearance like a graceful arc from the four limbs. We have to imagine that what happened in the past thousand years. So, today we will introduce the evolution of whales is interesting because it’s about the skeletal structure, life environment and foods. Biological evolution is to experience of all species. Some species are disappearing in the evolutionary process, and the others are more and more advanced. People change from apes in the prehistoric period up to now; In order to grab the foods which are on the tree. Giraffe's neck is longer than previously. In “The Role of Natural Selection in Evolution”, author writes, “Evolution is the continuous genetic adaptation of a population of organisms to its environment over time. Evolution involves changes in the genes that are present in a population.” In other words, author says that the same animal is transformed the higher level. Evolution goes on the whole world and the whales are no exception. The skeletal structure of...

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