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The Evolution Site The theory of natural selection as the basis of evolution is the defining factor in the current biology. It connects disciplines such as genetics, palaeontology and microbiology. However the study of evolutionary theory is often controversial and the misinformation that results can confuse people regarding its basic concepts. This website helps to explain the most important concepts. What is Evolution? The modern 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 have traits that are beneficial and help them survive and reproduce in a specific environment. In turn, these organisms produce more offspring than those that don't have these beneficial characteristics. 에볼루션 사이트 could cause a genetic change which could eventually lead to new species. The term “evolution” is usually associated with “survival-of-the most fittest” which implies that people who are better adjusted to certain conditions will have an advantage over those less well-adapted. However, this is only one of the many ways that evolution can occur. Another way that the word evolution is used to suggest that a species will invariably move from one state to the next state of being. This view of evolution is known as anagenetic or cladogenesis. This theory is not supported by the definition of evolution in science. The scientific theory of evolutionary change focuses instead on the 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 supported this view. Others, notably Alfred Russel Wallace, who came up with the macroevolution theory believed that this was the only way that the higher forms of life could have evolved from the lower ones. A theory must stand against rigorous tests and evidence in order to be considered as a theory. The evidence for evolution has stood the test of time and has been backed by numerous studies in various sciences, from biology to geology, chemistry to astronomy. In fact evolution is regarded as one of the fundamental tenets of science today, and is backed by the vast majority of scientists worldwide. Many people are confused about the nature of the theory of evolution and how it connects to religion. What is the Theory of Evolution (Evolutionary Theory)? Evolution is the scientific explanation for how living things change over time. It is based on few established facts: that more offspring are created than can be surviving as individuals differ in their physical traits and they can pass on traits to the next generation. These findings are supported by the growing body of evidence from molecular biology, palaeontology, functional morphology, climatology and geology. The theory of evolution by natural selection was initially conceived by Charles Darwin and Alfred Russel Wallace in the mid-19th century as an explanation for how organisms adapt to their biological and physical environment. It is now the best-supported and most widely tested theory in the field of science. Its predictions were proven by the evidence that for instance, more complex organisms have fewer genetic mutations. Additionally, the more successful an organism is in surviving and reproducing in its ability to reproduce, the more likely it will be to pass on its genes to future generations. Some people oppose evolution because they believe that it implies there is no reason for existence. However, a lot of scientists who are also religious like the famous Cambridge Palaeontologist Simon Conway Morris, believe that evolution is not only compatible with belief in God but is enhanced by it (BioLogos 2014). In reality, a large number of highly skilled 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 researchers contributed to the understanding a wide range phenomena, including phylogenetics and genomics, as well as the formation and function fossils. The term “theory” that is often misused, refers to a scientific hypothesis that has been tested and refined over a period of time. Scientists test hypotheses by repeating the experiments or observations that led them to their conclusions. Thus the theory of evolution theory has been repeatedly confirmed, along with the related theories of Copernican theory as well as atomic theory and germ theory. What is the Process of Evolution? The process of evolution is a gradual change in the genetically different individuals within a species over time. This is the result of the natural selection of individuals who are more well-adapted to their environment. The better-adapted individuals have a higher chance of survival and reproduction. As more individuals survive and reproduce, their genes are more widely distributed in the general population. This process is sometimes called “survival for the strongest.” According to the theory of evolution the causes of mutations that result in genetic variation are the primary reason for evolution. These mutations could occur at random or be influenced by the environment. When mutations occur randomly, the allele frequencies will vary from generation to generation. If a mutation is beneficial, it can increase the frequency of the allele, causing the allele to spread throughout the population. Over time, these changes in the frequencies of alleles can result in the creation of new species. The new species can then continue to evolve and become newer forms. This is a process known as macroevolution. The formation of an entirely new species is typically caused by changes in the environment which allow certain kinds of resources to become available or cause new environmental challenges. For example, the evolution of finches in the Galapagos Islands is a result of the availability of different foods and the need to protect themselves from predators. In a broader context, evolution can be defined as any change in the nature of living organisms over time. The change could be subtle, such as the development of new coloration or a dramatic change, such as the development of an organ. Scientists who accept the theory of evolution generally agree on the significance of genetic change in generating evolution. They also agree that evolution is a process that takes place over time, usually over millions of years. However, they differ on the role of different factors in speeding or slowing the process, like the impact of environmental pressures, sexual selection, and mutation bias. Despite these differences, most scientists believe that evolution has occurred and the evidence to prove this is overwhelming. What is the Evidence of Evolution? Since Darwin's time, scientists have collected evidence to support his theory of evolution. This evidence comes from fossils that demonstrate the evolution of living organisms over time. Other evidence is found in similarities among living organisms embryology, biogeography, genetics and comparative anatomy. The evolutionary tree is the most effective way to prove evolution. It demonstrates how species are related. Another source of evidence is homologous structures, which share 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 the same environment is another 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 kind of convergent evolution, which suggests that the species had common ancestral ancestors. Another piece of evidence is the existence of vestige structures, which are unusable organs that could serve a purpose in the distant ancestors. The human appendix for instance is a remnant of an organ that once used to digest food. These structures tend to shrink in size when they are no longer utilized in a process called natural selection. Scientists have also gathered evidence for evolution by observing and experimenting. The evidence for evolution is divided into six categories: directly visible small-scale changes, biogeographic distribution as well as comparative anatomy, fossil record, classification and genetics. Each of these provides compelling evidence that evolution of life has taken place. Although many people have misconceptions about the theory of evolution It is a scientific fact. It is not simply a flimsy theory. It is a mighty collection of decades of research and observation that has been proven and tested. Whatever people believe or don't believe about the theory of evolution scientists continue to research and collect new data in order to further understand the history of life on Earth. This information will aid scientists to understand how to avoid future catastrophes on the planet and how to best utilize the resources of our planet. This information will also help us better meet the needs and wants of all the people living on this planet.