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The Evolution Site<br><br>The theory of natural selection as the underlying principle of evolution is the central force in modern biology. It connects disciplines such as genetics, [http://79bo3.com/space-uid-8640954.html ์๋ณผ๋ฃจ์ ๋ฐ์นด๋ผ] microbiology, and the study of palaeontology.<br><br>The study of evolution can be controversial, and the misinformation that is generated can lead to confusion about the fundamentals of evolution. This site explains the fundamental concepts.<br><br>What is Evolution?<br><br>Modern evolutionary theory is based on the gradual and cumulative changes that happen in populations over time. These changes are the result of natural selection. This is a process which increases the number of organisms that have beneficial traits, which enable them to survive and reproduce in particular environments. As a result, these organisms have more offspring than those that don't possess the beneficial characteristics. This can lead to a genetic mutation that may eventually result in new species.<br><br>The term "evolution" is frequently associated with the idea of "survival of the fittest" which implies that people who are the most adapted to a specific environment will be more successful than those who are not well-adapted. In actuality this is just one of the many different ways that evolution can occur.<br><br>Another way that the term "evolution" is used is to suggest that a species will invariably move from one state of being to the next one. This type of view of evolution is called anagenetic or cladogenesis. The definition of evolution that scientists have developed is not in agreement with this view. The evolutionary theory that scientists have developed changes focuses on the changes that occur in populations over time. These changes are caused by mutations that produce natural selection and genetic variation.<br><br>Certain scientists, including the great Charles Darwin, advocated this view of evolution. Others, such as Alfred Russel Wallace, who developed the theory of macroevolution, believed that this was the only way that the higher forms of life could be derived from lower forms.<br><br>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 proven to be valid in numerous scientific disciplines ranging from geology to biology, from astronomy to chemistry. Evolution is the foundation of science and ์๋ณผ๋ฃจ์ ๊ฒ์ด๋ฐ ([https://gratisafhalen.be/author/energyjoseph7/ gratisafhalen.Be]) is backed by a majority of scientists around the world. Many people are misinformed about the nature of the evolution theory, especially how it relates with religion.<br><br>What is the Theory of Evolution (Evolutionary Theory)?<br><br>Evolution is an explanation for the way living things change over time. It is based on few established facts: that more offspring are produced than can survive as individuals differ in their physical characteristics, and that they are able to pass on traits to the next generation. These observations are backed by the increasing amount of evidence from molecular biology, palaeontology climatology, functional morphology and geology.<br><br>Charles Darwin and Alfred Russel Wallace independently developed the theory of evolution through selection in the mid-19th century as an explanation why organisms adapt to their physical and biologic environments. It is the most widely accepted and tested theory in science. Its predictions have been borne out by the fact that, for example more complex organisms are more likely to have less genetic mutations than simpler ones. In addition, the more efficient an organism is in surviving and reproducing and reproducing, the more likely it will be to pass its genes to future generations.<br><br>Some people oppose evolution because they think it implies that there is no purpose for 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 also enhances it (BioLogos 2014).<br><br>In fact, a large number of highly trained evolutionary biologists, including some 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 wide range phenomena, including genomics and phylogenetics as well as the formation and function of fossils.<br><br>The word "theory" is sometimes used in a wrong sense to mean an assumption or speculation, when in fact it refers to a scientific hypothesis that has been thoroughly tested and refined over time. Scientists test hypotheses through repeating the experiments or observations that led them to them. The theory of evolution has been repeatedly borne out and so have the theories of Copernican, germ theory, and atomic theory.<br><br>What is the Process of Evolution?<br><br>The process of evolution is the gradual change over time in the proportion of genetically distinct individuals within a certain species. This change is a result of natural selection, which favors those who are better adapted to their environment. The people who are more adaptable have higher chances of reproducing and survival. As more individuals survive and reproduce their genes are more widely distributed within the population. This process is sometimes called "survival of the fittest."<br><br>According to the theory of evolution the mutations that result in genetic variation are the basic material for evolution. These mutations can occur at random or be influenced by the environment. When mutations occur at random, the allele frequencies may vary from generation to generation. In contrast, when the mutation is beneficial it increases the frequency of the allele, causing it to spread throughout the population.<br><br>These changes in allele frequency can result in new species as time passes. The new species will then evolve and develop into newer forms. This process is called macroevolution. The creation of a new species is usually caused by changes in the environment which make certain kinds of resources available or cause new environmental challenges. For example, the evolution of finches on the Galapagos Islands is a result of the abundance of food sources and the need to protect themselves from predators.<br><br>In a larger sense it is possible to define evolution as any change in the characteristics of living organisms over time. This change can be subtle, like the development of new coloration or a dramatic change, such as the formation of an organ.<br><br>Scientists who accept the theory of evolution generally agree on the importance of genetic changes in the process of generating evolution. They also agree that the process of evolution happens over a long period of time, often millions of years. They differ on the importance of different factors that can accelerate or slow down this process. For instance the role played by sexual selection, environmental pressures, and mutation bias. Despite these differences, the majority of scientists believe that evolution has occurred and the evidence to prove this is overwhelming.<br><br>What evidence can be found for evolution?<br><br>In the decades since Darwin's time, scientists have gathered 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. Similarities between living organisms as well as embryology, biogeography, and genetics are also evidence.<br><br>The primary evidence of evolution is found in the evolutionary tree, which demonstrates how different species are related. Another evidence source is homologous structures, which have a similar structure in different species, but perform distinct functions, such as the wings of bats and birds. The fact that different species evolve and adapt to the same environment is also evidence of evolution. For instance, arctic-foxes and Ptarmigans sport white pelts during the winter months which blend with snow and ice. This is a type of convergent evolution, [https://heavenarticle.com/author/usekite2-1733032/ ์๋ณผ๋ฃจ์ ๋ฐ์นด๋ผ ์ฒดํ] - [http://www.xuetu123.com/home.php?mod=space&uid=10153023 find more] - which suggests that the species have common ancestral ancestors.<br><br>Another evidence point is the existence of vestige structures, which are unusable organs which could have served a purpose in a distant ancestor. For instance the human appendix is a vestige of a once-used organ that was used to digest food. Natural selection causes the structures to shrink when they cease to be used.<br><br>Scientists have also collected evidence for evolution through observation and testing. The evidence for evolution can be divided into six different categories: directly observed changes at small scales, biogeographic distributions, comparative anatomy, the fossil record and genetics. Each of these categories offers convincing evidence for the evolution of life.<br><br>Many people have misconceptions regarding the theory of evolution. However, it's an actual fact. It isn't only a theory, it is a mighty collection of decades of observation and accumulated data that has been proven and tested. Scientists continue to gather 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 help scientists to better understand how we can avoid future global catastrophes and how to use the resources of our planet. This information will also help us better serve the needs and desires of the people living on our planet.
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