Evolution Of Butterfly

The setting in the two novels plays important roles in both of the plots. In The Butterfly Revolution, the setting shifts in the very beginning of the story. In the journal Winston Weyn receives for his birthday from his uncle, he describes his home. Winston also shares with us that from his parents he half-heartedly accepted a trip to High Pines for the summer. Winston was not like most boys, and instead of playing baseball and doing things that most boys do, he read books. This bothered his brother Howard, which just encouraged Winston to read more and more. His father and mother, both concerned, had multiple talks with Winston but none of these talks resulted in anything. “And here I am, sitting on a thin and kind of smelly narrow mattress on my bunk in a cabin at High Pines” (22). He went from the comfort of his own bed to the smelly mattress of High Pines. The central conflict of the story begins at the camp. This shift of setting allows the real story to begin. Later in the novel, the setting shifts again. Some of the boys begin to venture off into the girls camp, or Low Pines. After the revolution has begun, they take over the girl camp, also. If the girls’ camp was not involved, two out of the three deaths would have been prevented. John Mason would not have died under the

At the beginning of the 1800s, scientists knew of some kinds of fossils, and were very aware of homologous and vestigial structures. Many scientists suspected that some kind of evolution had given rise to living things around them. However, they had no theory to explain how evolution might have occurred. Two scientists led the way in the search for a mechanism of evolution. The first was Jean Lamarck. The second was one of the greatest figures in biology, Charles Darwin.

Natural sources of variation include: mutations, gene flow, and genetic shuffling. Mutations are random changes in DNA that result in beneficial, harmful, or no changes in an organism. Gene flow can also be referred to as migration. It is the exchange of genes of individuals from one population to another. Genetic shuffling occurs in meiosis when alleles switch to create new combinations of genes. The steps of natural selection are overproduction, variation, competition, and selection. Overproduction is important because it keeps the species from becoming extinct and allows for more variation in offspring. Variation is what can either help the organism have a higher chance of surviving or could lower the chance of surviving.

According to Dr. James Krupa of The University of Kentucky “evolution is the foundation upon which all biology rests.” In biology, evolution is the genetic change in characteristics over generations and is dependent on the process of natural selection. ‘The theory of evolution is based on the idea that all species are related and gradually change over time’ (Genome Campus, 2017). Genetic variation is vital to evolution as it affects the physical characteristics or phenotypes of morphology. Natural Selection is affected by environmental factors that act upon a population and result in the mutation of organism through offspring. These mutations enable individuals to adapt to their environments in order to survive, find food, avoid predators and

1. Evolutionary theory describes how populations change over time due to changes in the gene pool. There are several mechanisms that can change a gene pool and allow evolution to occur. Natural selection, mutation, gene flow and genetic drift are some of the driving forces behind evolutionary change. Natural selection and genetic drift are the mechanisms that decrease genetic variation, whereas gene flow and mutation are the driving mechanism to increase genetic variation. Natural selection is basically the understanding that the environment can not support unlimited population growth, and not all organisms are able to reproduce to their full potential due to trait variation. For example, a black fly may

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

Evolution is the idea of a living organism adapting or mutating to gain beneficial physiological, psychological and structural features. The genetic makeup of all living things is constantly changing, due to DNA replication errors or outside factors, some of these changes impact drastically on the organism changing it for the better or worse. Typically when an organisms genetic code is changed for the better and it reproduces and outlives its unchanged counterparts this process is called evolution.

"We cannot allow our children to grow up in this corrupt and tyrannical regime, we have to fight against it, and I am willing to give up everything, including my life if necessary." (Patria Mercedes Mirabal)

The process of natural selection is the reason evolution occurs, which also supports the evidences of traits that occur. And for natural selection to take effect, three elements are necessary, and variation is two of these three elements. This specific element expresses that with consideration to specific traits, individual organisms in a population are varied from one another, such as differing from reproduction, fitness, and survival. These traits can be advantages or disadvantages. For instance, an advantage can be having a higher reproductive rates which is a good quality for survival. And in the second element relating to variation, it concurs that variation is passed on from parent to child. So if the parent has traits that has higher reproduction and survival, it passed on to their offspring. And the environment itself is the critical mechanism.The environment impacts which traits

Natural selection in evolution also involved genetic changes from one generation to another. There are two examples that I found helpful in my quest for understanding evolution through genetic evidence. They include variation and inheritance. In the variation, each and every living organism is a little bit different from the other. (Primate behavior and ecology.,03-07).Each of them is genetically unique. As a result of random changes in the genetic make-up, subsequent living organisms are born with new and quite different traits. This occurs in the processes of mutation and meiosis. (Weiner 01-04). Adaptive radiation occurs whereby closely related species live in different environments, and the process causes variation in the genetic makeup of species from a common ancestor.

Evolution is the process of change in a given population. There are 2 possible ways this change can happen. One way is through the difference in abilities of individuals to survive and reproduce. These differences, or variation, are largely created by genetic mutations in the DNA, ultimately making each individual different from one another. This idea of variation can be shown in Figure 2, where even though they are all the same species in Daphne Major, Medium Ground Finches, they all have a variety of different Beak Depths. This difference among each Finches forces some to have a natural advantage while others to have a natural disadvantage, purely based on the environmental conditions. This is mainly because some traits are more well adapted

What is genetic variation? Genetic variation refers to diversity in gene frequencies. Genetic variation can refer to differences between individuals or to differences between different populations. Mutation is the best source of genetic variation.Mutation is the changing of the structure of a gene, and when resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes. but mechanisms such as sexual reproduction and genetic drift contribute to it alot.As with other species, Great Whites are somewhat differ among individuals from place to place. Great Whites from southern

Natural selection; Darwin’s natural selection has by individuals better adapted to their environment with survival and reproductive success. (Than, 2005) Variation is an example of Natural Selection. Variation shows that the outcome of an organism changes. The outcome will be found by existing genetics and there will not be any invented characteristics. As a result of variation varieties that have long tails or shorter tails may appear in certain species’ gene pool. (____________). With that being said though that is not saying that variations can change a bird into a reptile. Heredity is another way natural selection plays a part in evolution. Heredity is the passing on a physical or mental characteristic genetically from one generation to another. Humans are an example of heredity, by children get genes from their parents. When you look at the genes from both your parents, they are not the same. Parents genes change over time, to show this look at a family with two kids, they I’ll not have the exact same genes, because the kid 's genes will have some of the different parental genes but some will be the same. Which is why the two kids can look similar. People that do not believe in evolution would use the argument

Biologist Charles Darwin, branded evolution as "descent with modification via natural selection." Each generation of animals that reproduces sexually, have a mixed DNA of their parents, generating differences in the descendants' DNAs and physical forms. DNA is one of the numerous genetic developments that change populations of animals over time, and that’s what descent with modifications is. When it comes to natural selection, it overlays “modification,” but the two theories are not accurately the same. Natural selection was mainly much the explanation for how species changed over time. For instance, animals in a hot environment with thin fur were most likely to survive. Animals with the gene for thin fur would have a greater advantage on staying

A species population may change over time by Genetic changes. These Genetic Changes often include visible differences, and different instincts to adapt to a different habitat. As the bird beak example above, the bird developed distinctly to attain food easier in different habitats. Species of animals over many, many years will adapt to their surroundings. These Genetic Changes are created by DNA mutations. Mutations occur when something goes wrong in creating DNA.