Evolution By Natural Selection Is A Theory Created By Charles Darwin

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

The descendants of the species have been given changes from their ancestors. This is called natural selection. Natural selection is a type of evolution that animals go through when there is a hardship in their natural habitat. Most animals go through natural selection to survive, they can pass it on to their kin.

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.

Natural selection is the process where organisms that have more advantageous adaptions that benefit its survival in its environment then breed and produce offspring with similar traits that then have a greater chance of survival. For natural selection to occur there are essential elements that are required; variation, heritability and excess production. For the formation of a new species there must be variation within a species so that some may have slightly better adaptions to the climate, diseases or other survival traits like better camouflage. The organisms that possess these adaptions are sometimes called more fit; this is called ‘survival of the fittest’. The ‘fitter’ organisms will then reproduce and their offspring will inherit the

Natural selection is the evolutionary process by which heritable traits that best enables organisms to survive and reproduce in a particular environment are passed to ensuing generations. Organism within the same species may develop new characteristics based on their environment to ensure their survival. The new genetic development within the species maybe then passed on to their offspring. Those within the species that do not develop a new characteristic to adapt to the altering environment are left prone to disease, deformities, and even death or extinction.

The formal “Theory of Evolution” thought to have come about by Charles Darwin, is built on the premise that all life is related and has descended from a common ancestor; meaning the birds and the bananas, the fishes and the flowers are all related (“Darwin’s Theory of Evolution”). In a nutshell, as random genetic mutations occur within an organism's genetic code, the beneficial mutations are preserved because they aid survival. This process is formally known as "natural selection." These beneficial mutations are passed on to the next generation. Over time, beneficial mutations accumulate and the result is an entirely different

“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.

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

On the other hand, natural selection by inheritance is characterized by the passing on of the beneficial gene to their offspring through meiosis. Charles Darwin gives an example of giraffes whereby in their original nature, they had variations in the length of their necks, and natural selection favored the ones with longer necks. As a consequence, the favored characteristic is passed on to the newer

Natural Selection is a macroscopic tendency for genes, or particular combination of genes, that survive to persist in the future.

Evolution is the change in the different types of living organisms which is slow process. Natural Selection is a battle between individuals within species, which results in the survival of those organisms that are better suited to their environment than others. Natural Selection is a mechanism of evolution. There are three conditions of Natural Selection which should meet to be able to survive and reproduce, so they can pass the traits to the next generation. In all species, there are huge numbers of variation in genetic traits which can help them to survive and there are some organisms which have specific characteristics which will help them to survive than other living things. Natural Selection helps species to adjust within the new or existing environment, to able to survive and pass to their offspring. There are competition for resources: However, there are some living things which are better competitors than others which can survive and reproduce. Evolution is result of Natural Selection (Smock 2014).

One of the four processes for evolutionary change is a mutation. Mutation is when a mutation could occur which causes the trait to be different in the offspring than the parents’ trait. The second is migration, of the processes for evolutionary changes. Migration is when some individuals from a population might migrate to another population and that population would have more frequent trait then they were that their original population. The third one is genetic drift, of the processes for evolutionary changes. Genetic Drift is a mechanism that can be changed in the frequency of the alleles in the population due to random selection or chance, which is either the bottleneck effect or the founder effect. Natural Selection is when an individual

The fittest organisms are the ones most likely to survive and pass on their genes (Orland). Competition to survive between organisms of a species plays a large part in natural selection (Christiansen). Descent with modification also plays a role in natural selection. It is the passing of a mix of genes from both parents into the offspring, causing variability (Haak). An example of an evolutionary adaptation would be the loss of legs in snakes or the large ears of a mouse

The theory of evolution essentially states how living species change over time. There are various ways species change, but most of them are based on the idea of Natural Selection, according to our text (Krogh, D., 2014, p. 307). Microevolution is a change in the recurrence of the alleles in a population process, which is reliable for the various changes or activity that varies from a norm or standard of some living species, like the examples of the finches (Krogh, D, 2014, p. 310). Microevolution happens on a small scale (within a single population), while macroevolution happens on a scale that transcends or go beyond the scope or limits of the boundaries of a single species. According to the diversity of species, evolution at both of these