Editing It s Time To Extend Your Free Evolution Options

What is Free Evolution?<br><br>Free evolution is the concept that natural processes can cause organisms to develop over time. This includes the creation of new species as well as the transformation of the appearance of existing ones.<br><br>This is evident in many examples, including stickleback fish varieties that can be found in salt or fresh water, and walking stick insect types that are apprehensive about specific host plants. These typically reversible traits are not able to explain fundamental changes to the basic body plan.<br><br>Evolution through Natural Selection<br><br>The development of the myriad living organisms on Earth is a mystery that has fascinated scientists for centuries. The most widely accepted explanation is that of Charles Darwin's natural selection, an evolutionary process that occurs when better-adapted individuals survive and reproduce more effectively than those less well adapted. Over time,  [http://47.93.56.66:8080/evolution8213 에볼루션 슬롯] the population of individuals who are well-adapted grows and eventually develops into a new species.<br><br>Natural selection is an ongoing process that involves the interaction of three factors: variation, inheritance and reproduction. Variation is caused by mutations and sexual reproduction, both of which increase the genetic diversity within a species. Inheritance is the passing of a person's genetic characteristics to the offspring of that person, which includes both dominant and recessive alleles. Reproduction is the process of creating fertile, viable offspring. This can be accomplished via sexual or asexual methods.<br><br>Natural selection is only possible when all the factors are in equilibrium. For instance, if an allele that is dominant at one gene causes an organism to survive and reproduce more often than the recessive allele the dominant allele will be more prevalent 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 with an adaptive trait will survive and reproduce far more effectively than those with a maladaptive feature. The more fit an organism is as measured by its capacity to reproduce and survive, is the greater number of offspring it produces. People with desirable characteristics, such as having a long neck in Giraffes, or the bright white patterns on male peacocks are more likely to others to live and reproduce, which will eventually lead to them becoming the majority.<br><br>Natural selection is only a force for populations, not on individual organisms. This is a major distinction from the Lamarckian theory of evolution which claims that animals acquire characteristics through use or neglect. For example, if a Giraffe's neck grows longer due to stretching to reach prey, its offspring will inherit a larger neck. The difference in neck length between generations will persist until the giraffe's neck gets too long that it can not breed with other giraffes.<br><br>Evolution through Genetic Drift<br><br>In genetic drift, the alleles of a gene could reach different frequencies within a population by chance events. At some point, one will reach fixation (become so widespread that it can no longer be removed through natural selection) and other alleles fall to lower frequencies. This could lead to an allele that is dominant in extreme. The other alleles are virtually eliminated and heterozygosity diminished to zero. In a small number of people, this could lead to the total elimination of recessive alleles. This scenario is known as a bottleneck effect and it is typical of evolutionary process when a large amount of people migrate to form a new group.<br><br>A phenotypic  bottleneck may also occur when survivors of a disaster like an outbreak or mass hunting event are concentrated in an area of a limited size. The survivors will share an allele that is dominant and will share the same phenotype. This situation might be caused by war, earthquake or even a cholera outbreak. The genetically distinct population, if left, could be susceptible to genetic drift.<br><br>Walsh, Lewens and Ariew define drift as a deviation from the expected values due to differences in fitness. They provide a well-known instance of twins who are genetically identical and have the exact same phenotype and yet one is struck by lightning and dies,  [https://lyzai.fun/evolution2867/evolutionkr.kr1982/wiki/The-10-Worst-Evolution-Baccarat-Site-Failures-Of-All-Time-Could-Have-Been-Prevented 에볼루션 슬롯게임][http://git.aseanbusiness.cn/evolution1122 에볼루션 사이트] ([http://120.26.64.82:10880/evolution3635/2433www.evolutionkr.kr/wiki/What+Is+Everyone+Talking+About+Evolution+Casino+Right+Now read this blog post from 120.26.64.82]) whereas the other lives and reproduces.<br><br>This kind of drift could be very important in the evolution of the species. But, it's not the only way to progress. Natural selection is the main alternative, where mutations and migrations maintain the phenotypic diversity in the population.<br><br>Stephens claims that there is a major difference between treating the phenomenon of drift as a force or as a cause and treating other causes of evolution such as mutation, selection, and migration as forces or causes. He claims that a causal-process account of drift allows us separate it from other forces and that this distinction is crucial. He further argues that drift is a directional force: that is it tends to eliminate heterozygosity. He also claims that it also has a size, that is determined by the size of the population.<br><br>Evolution through Lamarckism<br><br>When students in high school study biology they are often introduced to the work of Jean-Baptiste Lamarck (1744 - 1829). His theory of evolution, commonly referred to as "Lamarckism" is based on the idea that simple organisms evolve into more complex organisms by inheriting characteristics that result from the use and abuse of an organism. Lamarckism can be demonstrated by a giraffe extending its neck to reach higher levels of leaves in the trees. This would cause giraffes to pass on their longer necks to offspring, who then grow even taller.<br><br>Lamarck the French zoologist, presented an idea that was revolutionary in his 17 May 1802 opening lecture at the Museum of Natural History of Paris. He challenged the conventional wisdom on organic transformation. According Lamarck,  [http://117.72.14.118:3000/evolution1950 에볼루션코리아] living organisms evolved from inanimate matter through a series of gradual steps. Lamarck wasn't the only one to suggest this, but he was widely considered to be the first to give the subject a thorough and general explanation.<br><br>The popular narrative is that Lamarckism became an opponent to Charles Darwin's theory of evolution by natural selection, and that the two theories fought out in the 19th century. Darwinism ultimately won and led to what biologists call the Modern Synthesis. The Modern Synthesis theory denies that traits acquired through evolution can be inherited and instead argues that organisms evolve by the symbiosis of environmental factors, such as natural selection.<br><br>Although Lamarck believed in the concept of inheritance by acquired characters and his contemporaries spoke of this idea, it was never a central element in any of their evolutionary theorizing. This is partly because it was never tested scientifically.<br><br>However, it has been more than 200 years since Lamarck was born and in the age of genomics there is a huge body of evidence supporting the possibility of inheritance of acquired traits. This is often referred to as "neo-Lamarckism" or more commonly epigenetic inheritance. It is a version of evolution that is as valid as the more popular Neo-Darwinian theory.<br><br>Evolution by adaptation<br><br>One of the most commonly-held misconceptions about evolution is that it is being driven by a struggle for survival. This view is a misrepresentation of natural selection and ignores the other forces that are driving evolution. The struggle for survival is more precisely described as a fight to survive within a specific environment, which may include not just other organisms, but as well the physical environment.<br><br>To understand how evolution works, it is helpful to consider what adaptation is. Adaptation is any feature that allows living organisms to live in its environment and reproduce. It can be a physiological structure like feathers or fur, or a behavioral trait such as a tendency to move into shade in hot weather or stepping out at night to avoid cold.<br><br>The ability of a living thing to extract energy from its environment and interact with other organisms as well as their physical environments, is crucial to its survival. The organism needs to have the right genes to generate offspring, and it should be able to access sufficient food and other resources. The organism should also be able to reproduce itself at the rate that is suitable for its niche.<br><br>These elements, in conjunction with gene flow and mutation can result in a change in the proportion of alleles (different forms of a gene) in the population's gene pool. As time passes, this shift in allele frequencies can result in the emergence of new traits and eventually new species.<br><br>Many of the features we appreciate in plants and animals are adaptations. For example the lungs or gills which extract oxygen from the air feathers and fur for insulation long legs to run away from predators, and camouflage to hide. However, a thorough understanding of adaptation requires a keen eye to the distinction between physiological and behavioral traits.<br><br>Physical traits such as thick fur and gills are physical traits. Behavior adaptations aren't like the tendency of animals to seek companionship or retreat into shade during hot weather. It is also important to note that insufficient planning does not cause an adaptation. In fact, a failure to think about the consequences of a choice can render it unadaptive, despite the fact that it appears to be sensible or even necessary.