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The Evolution Site The concept of natural selection as the foundation of evolution is the unifying force in the current biology. It ties together disciplines such as genetics, microbiology and Palaeontology. However, the study of evolution is often controversial and the misinformation that results can confuse people regarding the fundamentals of evolution. This site clarifies the most 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 caused by natural selection, a process that increases the number of organisms who have beneficial traits that allow them to survive and reproduce in a particular environment. This means that these organisms leave more offspring than those that don't possess the beneficial traits. This leads to the genetic changes that can eventually lead to the creation of new species. The term “evolution” is usually associated with “survival-of-the best” which implies that individuals who are more adaptable to specific environmental conditions will have an advantage over those less well-adapted. This is just one of many ways in which evolution can occur. Another way that the word evolution is used is to suggest that a species will invariably progress from one state to the next one. This view of evolution is known as anagenetic or cladogenesis. The definition of evolution in science 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 genetic variation. Some scientists, including the great Charles Darwin, advocated this view of evolution. Others, such as Alfred Russel Wallace, who created the macroevolution theory, believed that this was the only way the higher forms of life could have evolved from the lower forms. To be able to be referred to as a theory, it must be able to stand up to rigorous tests and evidence. Evolution has stood the test of time and has been backed by numerous scientific disciplines ranging from biology to geology, from astronomy to chemistry. In fact, evolution is accepted as one of the cornerstones of science today, and it is supported by the vast majority of scientists across the globe. Many people have misconceptions regarding the nature of the theory of evolution, especially how it relates to religion. What is the Theory of Evolution (Evolutionary Theory)? Evolution is the scientific explanation of how living things change over time. It is based on a variety of well-established observations: that more offspring are produced than could possibly survive; that individuals differ from one another in their physical characteristics (phenotype); that different traits confer varying rates of reproduction and survival and can be passed down to the next generation. These findings are backed by an increasing body of evidence drawn from molecular biology, palaeontology and climatology functional morphology geology. The theory of evolution by natural selection was conceived independently by Charles Darwin and Alfred Russel Wallace in the mid-19th century to provide an explanation for the reason that organisms are adapted to their physical and biological environments. It is now the best-supported and most extensively tested theory in all of science. Its predictions have been borne out by the evidence that, for instance more complex organisms have less genetic mutations than simpler ones. In addition, the more efficient an organism is in being able to reproduce and survive and reproducing, the more likely it is to pass on its genes to the next generation. Some people oppose evolution because they believe that it implies that there is no purpose for life. However, many scientists who are also religious believers like the famous Cambridge palaeontologist Simon Conway Morris, believe that evolution isn't just compatible with belief in God but also enhances it (BioLogos 2014). Many highly qualified evolutionary biologists have been involved in developing and testing the theory of evolution, which includes some respected evangelical Christian leaders. Many of them have contributed to the understanding of a wide variety of phenomena like phylogenetics, genomics and the formation and role of fossils. The word “theory” which is often used incorrectly refers to scientific hypothesis that has been tested and refined over time. Scientists test hypotheses by repeating the experiments or observations that led them to the conclusion. So, the theory of evolutionary 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 shift in the genetically different individuals within a particular species over time. This is the result of the 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 people survive and reproduce, their genes become more prevalent in the general population. This process is sometimes called “survival for the strongest.” According to theories of evolution the causes of mutations that result in genomic variation are what drives evolutionary change. These mutations can occur randomly or under the influence of the environment. When mutations are random, the frequency of the resultant alleles could differ from generation to generation. In contrast, when a mutation is beneficial, it can increase the frequency of the allele, causing it to spread across the population. Over time, these shifts in allele frequencies can result in the creation of new species. The new species may continue to evolve and become newer forms. This is a process known as macroevolution. The creation of an entirely new species is typically caused by changes in the environment that allow certain kinds of resources to become available or cause new environmental challenges. The evolution of finches in the Galapagos Islands, for example, is due to the availability of new foods and the necessity to defend themselves from predators. In a broader context, evolution can be defined as any change in the nature of living organisms over time. This change can be subtle, such as the development of new colors or dramatic, like the formation of an organ. Scientists who accept evolution theory generally agree that genetic changes are essential in creating evolution. They also agree that the process of evolution happens over a lengthy period of time, usually millions of years. However, 에볼루션카지노사이트 differ on the role of various factors in accelerating or retarding the process, like the impact of environmental pressures, sexual selection, and mutation bias. Despite these disagreements, most scientists believe that evolution is real and the evidence in support of this is overwhelming. What evidence can be found for evolution? Since Darwin's time scientists have collected evidence to back his theory of evolution. Some of this evidence is derived from fossils which show the changing characteristics of living things over time. Similarities between living and non-living organisms as well as embryology, biogeography, and genetics are further evidence. The main proof of evolution is in the evolutionary tree, which shows how different species are related. Another evidence source is homologous structures, which have a similar structure in different species, but have distinct functions like the wings of bats and birds. Evolution is also evident in the fact that different species adapt and grow to similar environments. For example, arctic-foxes and Ptarmigans wear white seasonal pelts which blend with snow and ice. This is a form of convergent evolution, which suggests that the species have common ancestors. The vestiges of structures are another source of evidence. They are the remains of an organism that could serve a function in the past. For instance the human appendix is remnants of an earlier organ that served to digest food. These structures tend to shrink in size when they are no longer utilized which is a process referred to as natural selection. Scientists have also gathered additional evidence for evolution through observation and experimentation. The evidence for evolution can be divided into six distinct categories: directly observed changes at a smaller scale biogeographic distributions and comparative anatomies, the fossil record and genetics. Each of these categories provides compelling evidence for the evolution of life. Many people have misconceptions about the theory of evolution. However, it is an actual fact. It is not a theory, but a significant collection founded on years of observation. No matter what people believe or disbelieve about the theory of evolution, scientists continue to study and gather new information to better know the story of life on Earth. This information will help scientists better understand how to prevent future global catastrophes and also how to best use the resources on our planet. It will also allow us to better serve the needs of people living on this planet.