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The Evolution Site The theory of evolution by natural selection is the defining force of modern biology. It combines disciplines such as microbiology, palaeontology, and genetics. The study of evolution may be controversial and the misinformation that results can lead to confusion over the fundamentals of evolution. This site explains the fundamental concepts. What is Evolution? The current understanding of evolution is based on the gradual and cumulative changes that happen within populations over time. These changes are a result of natural selection, which increases the number of organisms who possess beneficial traits that allow them to survive and reproduce in a specific environment. As a result, these organisms produce more offspring than those who don't have these beneficial characteristics. This results in the genetic changes that can eventually lead to the creation of new species. The term “evolution” is often ascribed to the notion of “survival of the fittest” which implies that people who are most well-adapted to a particular environment will be more successful than those who aren't adapted to the environment. In actuality this is just one of many ways in which evolution can occur. Another way to use the term “evolution” is to suggest that species are able to move from one stage to the next. This view of evolution can be described as anagenetic, or cladogenesis. This is not backed by the definition of evolution that is scientifically accepted. Instead the scientific theory of evolution concentrates on the changes that occur in populations over time and these changes are caused by mutations that produce genomic variation and natural selection. Some scientists, such as the great Charles Darwin, advocated this view of evolution. Alfred Russel Wallace who developed the macroevolution theory believed that this was the only way in which the higher forms of living could have evolved. A theory must stand up to rigorous tests and evidence in order to be considered a theory. Evolution has stood the test of time and has been supported in countless scientific disciplines from geology to biology, the sciences of astronomy to chemistry. In reality evolution is considered to be one of the cornerstones of science today and is supported by the vast majority of scientists around the world. Many people are misinformed about the nature of the evolution theory and how it connects with religion. What is the Theory of Evolution? Evolution is a scientific explanation of the way living things change over time. It is based upon a few well-established facts: that many more offspring are produced than can be surviving and that different individuals have their physical characteristics and that they can transmit traits to future generations. These findings are supported by the growing body of evidence from molecular biology, palaeontology climatology, functional morphology and geology. Charles Darwin and Alfred Russel Wallace independently conceived the theory of evolution by selection in the middle of the 19th century as a way to explain how organisms are adapted their physical and biological environments. It is the most well-supported and tested theory in science. Its predictions were proven by the evidence that for instance, more complex organisms have less genetic mutations. The more successful an organism becomes in terms of surviving and reproducing, the more likely it is to pass its genes on to future generations. Some people are against evolution because they think it implies there is no purpose for life. However, a lot of scientists who are also religious believers like the famous Cambridge palaeontologist Simon Conway Morris, believe that evolution is not just compatible with faith in God but can be enhanced by it (BioLogos 2014). In actual fact, a significant number of highly trained evolutionary biologists, including a few who are respected evangelical Christian leaders are involved in the creation and testing of the theory of evolution. Many of these researchers have contributed to the understanding of a wide range of phenomena, including phylogenetics and genomics, and the formation and role of fossils. The term “theory” is often used to refer to a guess or speculation but in reality it refers to a scientific idea that has been systematically tested and refined over time. Scientists test hypotheses through repeating the experiments or observations that led them to them. Therefore, the theory of evolutionary theory has been repeatedly confirmed as have the corresponding theories of Copernican theory, atomic theory, and germ theory. What is the Process of Evolution? The process of evolution is a gradual shift in the genetic makeup of different individuals within a species over time. This change is the result of natural selection of individuals who are more adapted to their environment. The better-adapted individuals have a better chance of survival and reproduction. As more people live and reproduce their genes become more prevalent in the general population. This process is sometimes referred to as “survival of the strongest.” According to the theory of evolution the mutations that result in genetic variation are the basic material of evolutionary change. These mutations can occur at random or be affected by the environment. When mutations are random, the frequencies of the resulting alleles may vary from generation to generation. When a mutation is beneficial it will increase the frequency of alleles and cause the allele to spread throughout the population. As time passes, these changes in the frequencies of alleles can result in the creation of new species. The new species can then grow and evolve into newer forms. This process is known as macroevolution. The formation of new species is often caused by changes in the environment which makes certain resources available or creates new environmental issues. The evolution of finches in Galapagos Islands, for example, is due to the availability of new food and the necessity to defend themselves from predators. In a broader context it is possible to define evolution as any change in the character of living organisms over time. This change can be subtle, such as the development of a new color or a dramatic change, such as the formation of an organ. Scientists who accept evolution theory generally believe that genetic change is essential in generating evolution. They also acknowledge that evolution is a process that occurs over time, usually over millions of years. However, they differ over the role of different factors that speed up or slow down the process, like the impact of environmental pressures, sexual selection, and mutation bias. Despite these differences scientists believe that evolution is happening and that evidence for this is overwhelming. What is the Evidence of Evolution? Since Darwin's time, scientists have gathered evidence to support his theory of evolution. Some of this evidence comes from fossils which demonstrate the changing features of living organisms over time. Another evidence comes from the similarities between living organisms, embryology, biogeography, genetics and comparative anatomy. The most important proof of evolution is found in the evolutionary tree, which illustrates how different species are related. Homologous structures are another evidence. They have a similar structure, but they perform different functions in different species, such as the wing of a bat or bird. Evolution is evident in the way that different species adapt and develop to similar environments. For instance, arctic-foxes and ptarmigans develop seasonal white pelts that blend in with snow and ice. This is a type of convergent evolutionary mechanism, which suggests that the species have shared ancestors. The vestiges of structures are another source of evidence. These are a part of an organism which may have served a purpose in the distant past. The human appendix for instance, is a vestige from an organ that was once used to digest food. These structures tend to shrink in size as they are no longer used, a process known as natural selection. Scientists have also gathered evidence of evolution through observation and testing. The evidence for evolution can be grouped into six distinct categories: directly observed changes at a small scale, biogeographic distributions, comparative anatomies, the fossil record and genetics. Each of these categories provides solid evidence for the evolution of life. While many people are misinformed about the theory of evolution It is an established fact. It isn't only a theory, it is a potent collection of years of research and observation that has been tested and proven. No matter what people believe or deny about the theory of evolution scientists continue to study and gather new information in order to further comprehend the evolution of life on Earth. 에볼루션 바카라 will allow scientists to better understand how we can avoid future global catastrophes and how to best utilize the resources available on our planet. This information will also help us better serve the needs and wants of the people who live on our planet.