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The Evolution Site The theory of natural selection as the underlying principle of evolution is the defining factor in modern biology. It ties together disciplines that are as diverse as genetics microbiology, and palaeontology. However the study of evolutionary theory is often controversial, and the resulting misinformation can confuse people regarding the fundamentals of evolution. This site explains the fundamental concepts. What is Evolution? Modern evolutionary theory is based on the gradual and cumulative changes that occur in populations over time. These changes are the results of natural selection. This is a process which increases the number of organisms with beneficial traits, which help them to thrive and reproduce in certain environments. In turn, these organisms produce more offspring than those who do not have the beneficial traits. This can lead to a genetic mutation that may eventually result in new species. The term “evolution” is frequently associated with the idea of “survival of the fittest” which implies that those people who are the most adapted to a specific environment will be more successful than those who aren't well-adapted. This is only one of the many ways that evolution can happen. Another popular way to use the term “evolution” is to suggest that species can change from one state to the next. This type of view of evolution is known as anagenetic or cladogenesis. The scientific definition of evolution does not support this idea. The evolutionary theory that scientists have developed change is based on changes that occur in populations over time. These changes are the result mutations which result in natural selection and genomic variation. Charles Darwin was one of the scientists who backed this theory. Others, such as Alfred Russel Wallace, who developed the theory of macroevolution and believed that this was the only way the higher forms of life could be derived from lower ones. To be able to be considered a theory, it has to be able to stand up to rigorous tests and evidence. Evolution has stood the test of time, and has been backed by countless scientific disciplines from geology to biology, the sciences of astronomy to chemistry. In reality evolution is regarded as one of the cornerstones of science today and is supported by the majority of scientists across the globe. Many people are confused about the nature of the theory of evolution and how it connects with religion. What is the Theory of Evolution (Evolutionary Theory)? Evolution is the scientific explanation of how living things change over time. It is based upon a few established facts: that more offspring are created than can be surviving, that individuals differ in their physical characteristics and that they can transmit traits to the next generation. These observations are supported by the growing body of evidence from molecular biology, palaeontology functional morphology, climatology and geology. The theory of evolution based on natural selection was developed independently by Charles Darwin and Alfred Russel Wallace in the late 19th century to provide an explanation for how organisms adapt to their physical and biological environments. It is currently the most well-supported and most widely tested theory in the field of science. Its predictions were confirmed by the fact, for example that more complex organisms have fewer genetic mutations. The more successful an organism becomes in terms of its longevity and reproducing the more likely it is to pass its genes on to the next generation. Some people oppose evolution because they believe it implies that there is no reason to life. However, many scientists who are also religious believers, such as the prominent Cambridge Palaeontologist Simon Conway Morris, believe that evolution isn't just compatible with belief in God but is enhanced by it (BioLogos 2014). Many highly qualified evolutionary biologists have been involved in constructing and testing the theory of evolution, which includes several highly respected evangelical Christian leaders. Many of these researchers contributed to the understanding of a broad range of phenomena, including phylogenetics and genomics, as well as the formation and function of fossils. The word “theory” is sometimes used incorrectly to mean an assumption or speculation, when in fact it refers to a scientific idea that has been rigorously evaluated and refined over time. Scientists test their theories by repeating experiments or observations that resulted in them. Thus, 에볼루션 바카라 무료체험 of evolution has been repeatedly borne out as have the corresponding theories of Copernican, atomic and germ theory. What is the Process of Evolution? The process of evolution is a gradual change in the proportions of genetically diverse individuals within a species over time. This is the result of natural selection of individuals that are better adapted to their environment. The individuals who are more adapted have better chances of reproduction and survival. As more of these individuals survive and reproduce, their genes become more common within the population. 에볼루션 코리아 is sometimes referred to as “survival of the strongest.” According to the theory of evolution, the mutations that produce genomic variation are the primary basis for evolutionary change. These mutations may occur at random or under the influence of the environment. If mutations occur in a random manner and the frequencies of alleles will vary from generation to generation. When an alteration is beneficial it can increase the frequency of the allele, causing it to spread through the population. As time passes, these changes in allele frequencies can lead to the formation of new species. The new species can then grow and evolve into newer forms. This is a process known as macroevolution. The creation of an entirely new species is typically due to changes in the environment that provide certain types of resources available or create new environmental problems. The evolution of finches in Galapagos Islands, for example, is due to the availability of new food and the necessity to defend themselves against predators. In a wider context it is any change that occurs in the traits of living organisms over time. The change could be small or even the creation of a new coloration or even massive, like the creation of a new organ. Scientists who believe in evolution theory generally agree that genetic change is crucial in the process of the process of generating evolution. They also acknowledge that the process of evolution takes place over a long time, usually millions of years. They differ in the importance of various factors that may speed up or slow down the process. For instance, the role of sexual selection, environmental pressures, and mutation bias. Despite these differences, the majority of scientists still believe that evolution is real and that the evidence to support this is overwhelming. What is the evidence for evolution? Since Darwin's time scientists have collected evidence to support his theory of evolution. The evidence comes from fossils that show the evolution of organisms over time. Another evidence comes from similarities between living organisms, embryology, biogeography, genetics and comparative anatomy. The main proof of evolution can be found in the evolutionary tree, which illustrates how species are related. Another source of evidence is homologous structures, which have a similar structures in different species but serve different purposes, such as the wings of birds and bats. The fact that different species evolve and adapt to a similar environment is also a sign of evolution. For instance, arctic-foxes and Ptarmigans wear white pelts during the winter months that blend into the snow and ice. This is a form of convergent evolutionary process, which suggests the species shared ancestors. Another piece of evidence is the existence of vestigial structures. These are unutilized parts of an organism which could have served a purpose in the distant ancestors. The human appendix for instance is an odour from an organ that was used to digest food. 에볼루션 바카라 무료체험 tend to shrink in size when they are no longer used which is a process referred to as natural selection. Scientists have also gathered other evidence of evolution through observation and experimentation. The evidence for evolution is grouped into six categories: directly observed small-scale changes in biogeographic distribution and comparative anatomy, the fossil record, classification and genetics. Each of these categories provides solid evidence for the evolution of life. Many people have misconceptions about the theory of evolution. However, it's an established fact. It isn't only a theory, it is a mighty collection of years of observation and accumulated data that has been tested and proven. Scientists continue to collect and study new information to better understand the evolution of Earth's existence, regardless of whether people believe in the theory of evolution or not. This information will aid scientists to understand how to avoid future global catastrophes and how to best utilize the resources on our planet. This information will also allow us to better meet the needs and desires of the people who live on our planet.