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The Evolution Site The theory of evolution based on natural selection is the defining force of modern biology. It ties together disciplines as diverse as genetics, microbiology and Palaeontology. The study of evolution may be controversial and the misinformation that results can cause confusion about its fundamentals. This website helps to clarify essential concepts. What is Evolution? Modern evolutionary theory is based on the gradual and cumulative changes that happen in populations over time. These changes are caused by natural selection, which increases the amount of organisms that possess beneficial traits that enable them to live and reproduce in a particular environment. The organisms that have these traits produce more offspring as a result of the positive characteristics. This leads to a genetic change that can eventually lead to the formation of new species. The term “evolution” is frequently associated with the idea of “survival of the fittest” which means that people who are most well-adapted to a specific set of environmental conditions will be more successful than those who are not well-adapted. This is just one of many ways that evolution can happen. Another way to use the word evolution is to suggest that a species are able to move from one stage to the next. This type of view of evolution is known as anagenetic or cladogenesis. The definition of evolution that scientists have developed is not in agreement with this view. click through the up coming website of evolution that is based on science change is based on changes that occur in populations over time. These changes are the result mutations that result from natural selection and genetic variation. Certain scientists, including the great Charles Darwin, advocated this view of evolution. Others, notably Alfred Russel Wallace, who developed the theory of macroevolution and believed that this was the only way the higher forms of life could have evolved from the lower forms. A concept must be able stand up to rigorous tests and evidence to be considered as a theory. Evolution has stood the test of time and has been backed by numerous scientific disciplines ranging from geology to biology the sciences of astronomy to chemistry. Evolution is a cornerstone of science and is supported by the majority of scientists around the world. However, many people have misconceptions about the nature of the theory of evolution, particularly the relationship it has with religion. What is the Theory of Evolution? Evolution is an explanation in science of how living things change over time. 에볼루션게이밍 is based upon a few well-established facts: that many more offspring are produced than can survive and that different individuals have their physical characteristics and that they can pass on traits to future generations. These observations are backed by the increasing amount of evidence from molecular biology, palaeontology functional morphology, climatology and geology. Charles Darwin and Alfred Russel Wallace independently developed the theory of evolution through selection in the mid-19th century as a reason why organisms are able to adapt to their physical and biological environments. It is currently the most well-supported and widely-tested theory in all of science. Its predictions were proven by the evidence that, for instance, more complex organisms are less susceptible to genetic mutations. In addition the more successful an organism is at being able to reproduce and survive and reproducing, the more likely it is to pass on its genes to future generations. Some people oppose evolution because they think it suggests that there is no purpose to life. However, many scientists who are also religious like the famous Cambridge Palaeontologist Simon Conway Morris, believe that evolution isn't just compatible with faith in God but is enhanced by it (BioLogos 2014). In fact, a large number of highly trained evolutionary biologists, including a few who are respected evangelical Christian leaders, have been involved in the development and testing of the theory of evolution. Many of these scientists contributed to the understanding of a vast array of phenomena, such as genomics and phylogenetics, as well as the formation and function of fossils. The word “theory”, which is often misinterpreted, refers to a scientific hypotheses that have been tested and refined over time. Scientists test their hypotheses by repeating experiments or observations that led to them. Therefore, the theory of evolution has been repeatedly borne out, as have the related theories of Copernican, germ and atomic theory. What is the Process of Evolution? The process of evolution is a gradual change in the genetic makeup of different individuals within a particular species over time. This change is the result of natural selection of individuals who are more adapted to their environment. The individuals who are more adapted have higher chances of reproducing and survival. As more individuals survive and reproduce their genes are more common within the population. This process is sometimes called “survival for the strongest.” According to evolution theory, mutations that lead to genomic variation are what drives evolutionary change. These mutations could occur at random or under the influence of the environment. When mutations occur randomly, the allele frequencies can vary from generation-to-generation. When a mutation is beneficial it can increase the frequency of the allele and cause the allele to be spread across the population. As time passes, these changes in allele frequencies could result in the creation of new species. The new species will develop and evolve into new forms. This is a process known as macroevolution. The creation of new species is typically caused by changes in the environment, that make certain resources accessible or creates new environmental issues. For instance, the development of finches on the Galapagos Islands is a result of the abundance of food sources and the need defend themselves from predators. In a larger sense it is possible to define evolution as any change in the characteristics of living organisms over time. The change could be subtle, like the development of new coloration or dramatic, like the development of an organ. Scientists who accept the theory of evolution generally recognize the importance of genetic change in the process that causes evolution. They also agree that evolution is a process that occurs over time, typically over millions of years. However, they differ over the role of different factors in accelerating or retarding this process, such as the role of environmental pressures, sexual selection and mutation bias. Despite these differences most scientists still believe that evolution is real and the evidence in support of this is overwhelming. What evidence can be found for evolution? Throughout the years since Darwin's time, scientists have collected evidence to support his theory of evolution. A portion of this evidence comes from fossils which show the changing characteristics of living organisms over time. Another evidence comes from similarities among living organisms embryology, biogeography genetics and comparative anatomy. The evolutionary tree is the most effective method to prove the existence of evolution. It demonstrates how species are related. Homologous structures are another evidence. They have a similar structure, but they perform different functions in different species, such as the wings of a bird or bat. The fact that different species develop and adapt to a similar environment is another sign of evolution. For example, arctic foxes and ptarmigans develop white fur coats that blend in with snow and ice. This is a type of convergent evolutionary process, which suggests that the species have shared common ancestors. Vestigial structures are a different piece of evidence. These are a part of an organism which may have served some purpose in the past. The human appendix for instance, is a vestige from an organ that once used to digest food. These structures tend to shrink in size once they're no longer in use which is a process referred to as natural selection. Scientists have also collected evidence for evolution through observation and experimenting. The evidence for evolution can be classified into six different categories: directly observable changes at a small scale biogeographic distributions and comparative anatomies fossil records, genetics. Each of these categories offers compelling evidence for the evolution of life. Many people are misinformed about the theory of evolution. However, it's an actual fact. It isn't only a theory, it is a potent collection of years of observations and data that has been tested and proven. Regardless of what people believe or deny about the theory of evolution scientists continue to research and collect new data in order to further comprehend the evolution of life on Earth. This information will help scientists to understand how to avoid future global catastrophes and how to make the most of our planet's resources. This information will also allow us to better meet the needs and desires of the people living on our planet.