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What is Free Evolution?<br><br>Free evolution is the idea that the natural processes of organisms can lead them to evolve over time. This includes the development of new species and transformation of the appearance of existing species.<br><br>Numerous examples have been offered of this, including different varieties of fish called sticklebacks that can live in either salt or fresh water, and walking stick insect varieties that prefer specific host plants. These typically reversible traits do not explain the fundamental changes in basic body plans.<br><br>Evolution through Natural Selection<br><br>Scientists have been fascinated by the evolution of all living creatures that live on our planet for many centuries. The best-established explanation is that of Charles Darwin's natural selection process, a process that is triggered when more well-adapted individuals live longer and reproduce more successfully than those less well adapted. Over time, the population of individuals who are well-adapted grows and eventually develops into an entirely new species.<br><br>Natural selection is a cyclical process that is characterized by the interaction of three elements: variation, inheritance and reproduction. Sexual reproduction and mutation increase the genetic diversity of an animal species. Inheritance is the passing of a person's genetic traits to the offspring of that person, which includes both recessive and dominant alleles. Reproduction is the production of viable, fertile offspring, which includes both sexual and asexual methods.<br><br>All of these elements must be in balance to allow natural selection to take place. For instance, if an allele that is dominant at a gene allows an organism to live and reproduce more often than the recessive one, the dominant allele will be more prominent within the population. If the allele confers a negative survival advantage or decreases the fertility of the population, it will go away. This process is self-reinforcing, which means that an organism that has an adaptive trait will live and reproduce more quickly than those with a maladaptive feature. The greater an organism's fitness which is measured by its ability to reproduce and endure, is the higher number of offspring it will produce. Individuals with favorable characteristics, like longer necks in giraffes, or bright white colors in male peacocks are more likely survive and produce offspring, and thus will become the majority of the population in the future.<br><br>Natural selection is an element in the population and not on individuals. This is a major distinction from the Lamarckian theory of evolution which states that animals acquire characteristics through use or disuse. If a giraffe stretches its neck to reach prey and the neck grows larger, then its children will inherit this characteristic. The difference in neck size between generations will continue to increase until the giraffe is no longer able to breed with other giraffes.<br><br>Evolution through Genetic Drift<br><br>Genetic drift occurs when the alleles of one gene are distributed randomly in a group. At some point, only one of them will be fixed (become common enough that it can no longer be eliminated by natural selection) and the other alleles will decrease in frequency. This could lead to an allele that is dominant in the extreme. The other alleles have been basically eliminated and heterozygosity has diminished to a minimum. In a small population this could result in the complete elimination of the recessive allele. This scenario is called the bottleneck effect. It is typical of the evolutionary process that occurs when an enormous number of individuals move to form a population.<br><br>A phenotypic bottleneck can also occur when survivors of a catastrophe such as an epidemic or a mass hunting event, are concentrated within a narrow area. The remaining individuals will be mostly homozygous for the dominant allele, meaning that they all share the same phenotype and thus share the same fitness characteristics. This situation might be caused by war, an earthquake, or  [https://library.kemu.ac.ke/kemuwiki/index.php/10_Of_The_Top_Mobile_Apps_To_Free_Evolution 에볼루션 무료 바카라] even a plague. Regardless of the cause, the genetically distinct population that remains could be prone to genetic drift.<br><br>Walsh Lewens and Ariew utilize a "purely outcome-oriented" definition of drift as any deviation from expected values for different fitness levels. They provide a well-known example of twins that are genetically identical and have identical phenotypes and yet one is struck by lightening and dies while the other lives and reproduces.<br><br>This type of drift can play a very important role in the evolution of an organism. It's not the only method of evolution. The primary alternative is a process called natural selection, where the phenotypic diversity of a population is maintained by mutation and migration.<br><br>Stephens asserts that there is a major distinction between treating drift as a force, or an underlying cause, and considering other causes of evolution, such as selection,  [https://www.upland.wiki/wiki/The_9_Things_Your_Parents_Teach_You_About_Evolution_Korea 바카라 에볼루션] 무료 [http://gitlab.smartersea.cn:11080/evolution9066 바카라 에볼루션] - [https://theconnectly.com/read-blog/4014_20-myths-about-evolution-baccarat-site-busted.html Highly recommended Online site], mutation and migration as causes or causes. He argues that a causal process account of drift allows us to distinguish it from other forces, and that this distinction is vital. He also argues that drift is both a direction, i.e., it tends towards eliminating heterozygosity. It also has a size, that is determined by the size of the population.<br><br>Evolution through Lamarckism<br><br>Students of biology in high school are often introduced to Jean-Baptiste Lamarck's (1744-1829) work. His theory of evolution is often known as "Lamarckism" and it states that simple organisms grow into more complex organisms by the inheritance of characteristics that are a result of an organism's natural activities, use and disuse. Lamarckism is illustrated through the giraffe's neck being extended to reach higher branches in the trees. This could cause giraffes to pass on their longer necks to offspring, which then grow even taller.<br><br>Lamarck was a French Zoologist. In his opening lecture for his course on invertebrate zoology held at the Museum of Natural History in Paris on the 17th May 1802, he presented a groundbreaking concept that radically challenged the conventional wisdom about organic transformation. According to Lamarck, living creatures evolved from inanimate matter through a series gradual steps. Lamarck wasn't the only one to make this claim, but he was widely regarded as the first to provide the subject a thorough and  [http://classicalmusicmp3freedownload.com/ja/index.php?title=%E5%88%A9%E7%94%A8%E8%80%85:LouieThao2 에볼루션 무료 바카라] general explanation.<br><br>The dominant story is that Charles Darwin's theory of natural selection and Lamarckism were rivals in the 19th century. Darwinism ultimately prevailed, leading to what biologists refer to as the Modern Synthesis. This theory denies acquired characteristics are passed down from generation to generation and instead argues that organisms evolve through the influence of environment factors, including Natural Selection.<br><br>Lamarck and his contemporaries believed in the idea that acquired characters could be passed down to the next generation. However,  [https://gitea.b54.co/evolution4175/evolution-kr2013/wiki/15-Of-The-Best-Pinterest-Boards-Of-All-Time-About-Evolution-Baccarat-Free-Experience 에볼루션 코리아] this idea was never a central part of any of their theories on evolution. This is due in part to the fact that it was never tested scientifically.<br><br>It's been over 200 years since the birth of Lamarck and in the field of genomics there is a growing evidence base that supports the heritability acquired characteristics. This is also known as "neo Lamarckism", or more generally epigenetic inheritance. This is a model that is just as valid as the popular Neodarwinian model.<br><br>Evolution through Adaptation<br><br>One of the most popular misconceptions about evolution is that it is being driven by a struggle to survive. This notion is not true and overlooks other forces that drive evolution. The struggle for existence is more accurately described as a struggle to survive in a particular environment. This could be a challenge for not just other living things, but also the physical surroundings themselves.<br><br>Understanding how adaptation works is essential to comprehend evolution. It refers to a specific characteristic that allows an organism to survive and reproduce in its environment. It can be a physical structure, like fur or feathers. It could also be a trait of behavior such as moving towards shade during the heat, or coming out to avoid the cold at night.<br><br>The survival of an organism depends on its ability to draw energy from the environment and interact with other organisms and their physical environments. The organism needs to have the right genes to produce offspring, and it should be able to find enough food and other resources. Furthermore, the organism needs to be capable of reproducing itself in a way that is optimally within its environmental niche.<br><br>These factors, together with mutations and gene flow, can lead to changes in the proportion of different alleles in the population's gene pool. The change in frequency of alleles could lead to the development of new traits and eventually new species over time.<br><br>Many of the characteristics we admire about animals and plants are adaptations, like lung or gills for removing oxygen from the air, fur or feathers to provide insulation long legs to run away from predators and camouflage to hide. To comprehend adaptation, it is important to discern between physiological and behavioral traits.<br><br>Physiological adaptations, like the thick fur or gills are physical traits, whereas behavioral adaptations, such as the tendency to seek out friends or to move to shade in hot weather, are not. Additionally, it is important to understand that lack of planning does not make something an adaptation. In fact, failure to consider the consequences of a behavior can make it unadaptable despite the fact that it may appear to be reasonable or even essential.