Evolution Vs Natural Selection

Evolution is a change in the characteristic of living organism through time. Modern synthesis, one of the greatest intellectual achievements of biology, could explain how mutations and natural selection could produced large-scale evolutionary change. There are 4 mechanisms for evolution to occur; mutation, gene flow, genetic drift and natural selection.
Although, there are a number of misconceptions about evolution; it does not explain the origins of life, it is not progressive, natural selection is not about the survival of the fittest individuals in a population, humans are not currently evolving, it does not make organism better designed nor does it gives organism what they need to survive. This essay will describe further, 3 common misconceptions

According to Darwin and his theory on evolution, organisms are presented with nature’s challenge of environmental change. Those that possess the characteristics of adapting to such challenges are successful in leaving their genes behind and ensuring that their lineage will continue. It is natural selection, where nature can perform tiny to mass sporadic experiments on its organisms, and the results can be interesting from extinction to significant changes within a species.

Evolution is the process of biological change by which descendants come to differ from their ancestors. Natural Selection is when an individual with the best trait survive and breed in more population. Larger populations of organisms with the desired traits will then occur and organisms will evolve. The four principles of Natural Selection are variation, over production, adaptation, and descent with modification. Charles Darwin, an English naturalist and geologist saw two major trends within organisms which were variation and adaptation. Variations are differences in individuals’ physical traits compared to other individuals. In the Galapagos Islands Darwin noticed that finches had different beak sizes and shapes. Darwin then concluded that finches with thicker beaks lived in areas where nuts were the main food source and finches with smaller beaks tended to live in areas where insects were the main food source. Adaptation are features that allow an organism to better survive in their environment. There has been many adaptations in animals but one of the best has been living in groups because animals can then “help each other find food, defend against predators and care for their young” (animalpanet, n.d.). Overproduction is when organisms produce more offspring than the environment can support. Darwin stated that all animals over produce since offspring can reach reproduction age and have offspring of their own. For example, “even a slow breeder

Evolutionism is the belief that all living things on Earth have developed from an earlier form. It states that humans have progressively advanced over time through a process called evolution. Creationism on the other hand, states that the world and human beings were created by God.The main problem that arises is when we have determine which of the two theories is correct and we should inclined to. Although evolution seems more credible due to the amount of evidence it has, neither theory presents ideas that are entirely clear and known with certainty. Natural selection is the only known theory that can explain the existence of adaptation in nature. However, this does not mean that natural selection is the driving force throughout evolution,

Evolution or trade over the years takes place through the methods of natural and sexual selection. In response to troubles in our environment, we adapt each physically and psychologically to ensure our survival and replica. Sexual selection principle describes how evolution has shaped us to provide a mating advantage rather than just a survival advantage and happens via two wonderful pathways: intrasexual competition and intersexual choice. Gene choice concept, the modern rationalization behind evolutionary biology, takes place thru the desire for gene replication. Evolutionary psychology connects evolutionary ideas with present day psychology and focuses in general on mental variations: adjustments within the manner we think with the intention to enhance our survival.

“If no such variations exist, the population rapidly goes extinct because it cannot adapt to a changing environment” (O’Neil, 1998-2013). Scientists call this reproductive success. “Within a specific environment context, one genotype will be better than another genotype in survival or reproduction for certain reasons having to do with the way its particular features relate to the environment or relate to other organisms within the population” (Futuyma, 2000-2014). The theory of evolution is explicable through various kinds of scientific research.

Stabilizing selection favors intermediate phenotypes within a range. The extremes of the variations are selected against. Children weighing significantly less than or equal to 3.4 kg have higher rates of infant mortality. The selection works against both extremes. In this type of selection, the intermediate phenotypes are favored and radical phenotypes are eliminated at both ends of a continuum of variation.

. The first force of evolution is mutation. It can be random or influenced and occurs during mitosis or meiosis. It happens when there is a change in a persons genetic code; most mutations are harmless. The second force is natural selection. Natural selection is the survival of a species with the help of their biological characteristics. Fitness, a type of natural selection, is a species ability to survive and produce offspring. The third force is genetic drift. This is a random change in a species' allele frequency. This can happen during a catastrophic event (bottleneck effect) or during a species colonization in a new region (founder effect). The fourth and final force is gene flow. Gene flow is the migration and reproduction of alleles

When Darwin coined the term “natural selection” he described another subset of it referred to as “Sexual selection”. Sexual selection can be defined as a special case of natural selection where rather than focusing on traits that serve to aid survival, organisms develop traits and behaviors in efforts to increase mating. Many times, these two efforts come in conflict with each other and tradeoffs arise. A male can be outcompeting another male through overall health and fitness, but be losing when it comes to gaining the females attention. Common examples of this tradeoff include peacocks maintaining elaborate tails but at the same time, making themselves more visible to predators, or fruit flies competing through dances to win the attention

Charles Darwin had arguably one of the best ideas anyone has ever had, the idea of evolution and natural selection. Along with these two ideas, he also noticed that all species are connected through the tree of life. While Darwin was studying finches in the Galapagos, he noticed each species of finch had a different type of beak. He latter understood that these different beaks were due to the varying types of diets of the birds based on what island they came from. The different beaks would help them open seeds easier or get nectar from flowers. The beaks showed Darwin’s idea of natural selection and survival of the fittest. Darwin realized that the birds were able to change (or evolve) over time, based on how well their beaks aided in feeding

Natural selection is when an organism is better suited to their environment then they tend to survive and reproduce, this will eventually lead to the evolution of a species over a great deal of time (Patterson, Natural Selection vs. Evolution). Furthermore, evolution is the change in a species’ characteristics over a long period of time (Your Genome, What is Evolution?). The purpose of the lab is to answer the research question of which beak type has the best features for collecting “food” and helping an individual bird survive in a changing environment? The dependent variable is the amount of food each bird collected with its beak and the independent variables are the different beaks used in the experiment (a toothpick, spoon, fork, or

They are very different methods of evolution, but they both achieve the same thing. Natural selection can be defined as the process by which the most fit to their environment produce more offspring and survive longer than others of their species. This is because of traits developed over many years that help an organism survive and reproduce, and are therefore passed onto the organism’s offspring. The main difference between artificial and natural selection lies within the way the traits are formed. With artificial, an organism is cultivated by an outside force, typically human, to develop a certain trait or gene. Artificial selection is similar to natural in the sense that, the reason the organism being manipulated really develops these traits

I accepted my hypothesis. Natural Selection and genetic drift can modify the population and frequencies over time. And according to the natural selection, the trait which best fit to the environment can be passed on.

I would like to respectfully comment that when you say "There is a reason that the original genes did not allow it to survive," it implies that the naturally occurring genetic information is consciously directing the survival of the organism. Evolution is a natural process, and is not perfect. What occurs naturally is not necessarily what is best for the organism. Genetic modification is not much different from artificial selection, in which one chooses which organism or organisms are to reproduce based upon one's desired traits of the offspring. Some common examples are the domestication of a naturally occurring form of wheat to become the plump corn we know today, and the breeding of wolves to become dogs. Humans were doing this even before

Darwin’s theory of natural selection argues that the inherited variation found among individuals will either help or hinder them. Those whose inherited traits enable them to better cope with the stresses of the world will be favoured to survive and