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What is Free Evolution?<br><br>Free evolution is the notion that the natural processes of organisms can cause them to develop over time. This includes the evolution of new species and the transformation of the appearance of existing species.<br><br>This has been proven by many examples such as the stickleback fish species that can thrive in saltwater or fresh water and walking stick insect species that prefer particular host plants. These mostly reversible trait permutations can't, however, explain fundamental changes in basic body plans.<br><br>Evolution by Natural Selection<br><br>The development of the myriad living organisms on Earth is a mystery that has fascinated scientists for centuries. The most well-known explanation is that of Charles Darwin's natural selection process, an evolutionary process that occurs when individuals that are better adapted survive and reproduce more successfully than those that are less well adapted. As time passes, the number of well-adapted individuals becomes larger and eventually creates a new species.<br><br>Natural selection is a cyclical process that is characterized by the interaction of three factors including inheritance,  [https://chavez-lambertsen-2.technetbloggers.de/15-interesting-hobbies-that-will-make-you-more-successful-at-evolution-site/ 에볼루션 사이트] variation, and reproduction. Mutation and sexual reproduction increase genetic diversity in an animal species. Inheritance is the passing of a person's genetic traits to their offspring which includes both recessive and dominant alleles. Reproduction is the process of producing viable, fertile offspring. This can be achieved by both asexual or sexual methods.<br><br>Natural selection can only occur when all these elements are in equilibrium. If, for example, a dominant gene allele allows an organism to reproduce and survive more than the recessive gene allele then the dominant allele becomes more prevalent in a group. However, if the allele confers an unfavorable survival advantage or decreases fertility, it will disappear from the population. The process is self reinforcing, which means that the organism with an adaptive trait will survive and reproduce far more effectively than those with a maladaptive trait. The more offspring an organism produces the more fit it is that is determined by its capacity to reproduce itself and live. People with good traits, such as longer necks in giraffes and bright white colors in male peacocks, are more likely to survive and have offspring, so they will make up the majority of the population in the future.<br><br>Natural selection is only a factor in populations and not on individuals. This is a significant distinction from the Lamarckian theory of evolution, which argues that animals acquire traits through use or disuse. If a giraffe stretches its neck to catch prey and its neck gets larger,  [http://bbs.lingshangkaihua.com/home.php?mod=space&uid=2728487 에볼루션바카라사이트] then its offspring will inherit this characteristic. The differences in neck length between generations will continue until the neck of the giraffe becomes too long that it can not breed with other giraffes.<br><br>Evolution through Genetic Drift<br><br>In genetic drift, alleles at a gene may reach different frequencies in a population by chance events. In the end, one will reach fixation (become so widespread that it is unable to be eliminated by natural selection), while the other alleles drop to lower frequencies. This can result in dominance at the extreme. Other alleles have been essentially eliminated and heterozygosity has been reduced to a minimum. In a small population, this could result in the complete elimination of recessive gene. Such a scenario would be called a bottleneck effect, and it is typical of evolutionary process when a lot of individuals move to form a new population.<br><br>A phenotypic bottleneck could occur when survivors of a catastrophe such as an epidemic or mass hunting event, are condensed into a small area. The surviving individuals will be mostly homozygous for the dominant allele, meaning that they all share the same phenotype and will therefore have the same fitness characteristics. This may be caused by conflict, earthquake or even a disease. The genetically distinct population, if left vulnerable to genetic drift.<br><br>Walsh, Lewens and  [http://www.haidong365.com/home.php?mod=space&uid=270940 에볼루션코리아] Ariew define drift as a deviation from the expected values due to differences in fitness. They cite the famous example of twins who are genetically identical and share the same phenotype, but one is struck by lightning and dies, while the other lives to reproduce.<br><br>This type of drift can play a very important role in the evolution of an organism. It is not the only method of evolution. Natural selection is the main alternative, in which mutations and migration maintain the phenotypic diversity in a population.<br><br>Stephens argues there is a huge difference between treating the phenomenon of drift as an agent or cause and treating other causes such as migration and selection as forces and causes. He argues that a causal-process explanation of drift lets us distinguish it from other forces, and this differentiation is crucial. He argues further that drift has a direction, i.e., it tends to reduce heterozygosity. It also has a size, which is determined by population size.<br><br>Evolution by Lamarckism<br><br>Biology students in high school are frequently exposed to Jean-Baptiste lamarck's (1744-1829) work. His theory of evolution,  에볼루션 무료 바카라, [https://pruitt-dillard-2.blogbright.net/the-ultimate-glossary-of-terms-about-free-evolution-1735005232/ Pruitt-dillard-2.blogbright.Net], often referred to as "Lamarckism" which means that simple organisms transform into more complex organisms through taking on traits that result from the organism's use and misuse. Lamarckism is usually illustrated with the image of a giraffe extending its neck longer to reach the higher branches in the trees. This could cause giraffes to pass on their longer necks to offspring, who would then grow even taller.<br><br>Lamarck was a French zoologist and, in his inaugural lecture for his course on invertebrate zoology at the Museum of Natural History in Paris on 17 May 1802, he presented an original idea that fundamentally challenged previous thinking about organic transformation. In his view living things had evolved from inanimate matter through an escalating series of steps. Lamarck wasn't the only one to suggest this however he was widely regarded as the first to offer the subject a thorough and general treatment.<br><br>The predominant story is that Charles Darwin's theory of natural selection and Lamarckism were rivals in the 19th Century. Darwinism eventually prevailed and led to what biologists call the Modern Synthesis. This theory denies acquired characteristics can be passed down and instead argues organisms evolve by the selective influence of environmental elements, like Natural Selection.<br><br>Lamarck and his contemporaries supported the notion that acquired characters could be passed on to the next generation. However, this idea was never a major part of any of their theories on evolution. This is largely due to the fact that it was never validated scientifically.<br><br>However, it has been more than 200 years since Lamarck was born and in the age of genomics there is a vast amount of evidence that supports the possibility of inheritance of acquired traits. This is often referred to as "neo-Lamarckism" or  [https://funsilo.date/wiki/10_Tips_For_Getting_The_Most_Value_From_Evolution_Baccarat_Experience 에볼루션 카지노 사이트] more often, epigenetic inheritance. It is a variant of evolution that is just as valid as the more well-known Neo-Darwinian model.<br><br>Evolution through Adaptation<br><br>One of the most common misconceptions about evolution is that it is driven by a type of struggle for survival. This is a false assumption and overlooks other forces that drive evolution. The fight for survival can be better described as a fight to survive in a certain environment. This could be a challenge for not just other living things, but also the physical surroundings themselves.<br><br>Understanding adaptation is important to understand evolution. The term "adaptation" refers to any characteristic that allows a living thing to survive in its environment and reproduce. It could be a physiological feature, such as fur or feathers or a behavior, such as moving into shade in the heat or leaving at night to avoid cold.<br><br>The capacity of an organism to extract energy from its surroundings and interact with other organisms as well as their physical environments is essential to its survival. The organism needs to have the right genes to produce offspring, and it must be able to locate enough food and  [https://fewpal.com/post/1345659_https-breum-donaldson-thoughtlanes-net-10-pinterest-accounts-you-should-follow-e.html 에볼루션 룰렛] other resources. The organism should also be able to reproduce at a rate that is optimal for its particular niche.<br><br>These elements, along with mutations and gene flow can cause a shift in the proportion of different alleles within the gene pool of a population. Over time, this change in allele frequencies can lead to the emergence of new traits and eventually new species.<br><br>A lot of the traits we admire in animals and plants are adaptations, like lung or gills for removing oxygen from the air, fur or feathers to protect themselves long legs to run away from predators, and camouflage to hide. However, a thorough understanding of adaptation requires paying attention to the distinction between behavioral and physiological traits.<br><br>Physical traits such as the thick fur and gills are physical characteristics. Behavior adaptations aren't like the tendency of animals to seek companionship or retreat into shade during hot weather. In addition it is important to note that a lack of thought does not make something an adaptation. Failure to consider the effects of a behavior, even if it appears to be rational, could make it inflexible.