Animal Selection Vs Artificial Selection

Many people are familiar with the words natural selection, an idea that was popularized by Darwin in the 19th century; to simply define it, natural selection is nature’s editing mechanism that results in the favoring of some individuals over others when exposed to certain environmental factors. Artificial selection parallels the process of natural selection but with an added twist: the involvement of human beings. Artificial selection is “a process in which humans consciously select for or against particular features in organisms” allowing “only organisms with the desired feature to reproduce or may provide more resources to the organisms with the desired feature” (Artificial Selection, n.d.).

Natural selection is the process by which organisms better adapted to their environment survive and produce more offspring. It’s believed to be the main process that brings about evolution. Natural selection will over time remove the deleterious gene as they have a negative effect for the population and are therefore not going to survive or produce offspring.

To begin, natural selection and artificial selection are drastically different. Natural selection is the process by which varied traits that increase survival and enable reproduction are passed down from one generation to another generation. Natural selection is where all species have some sort of involvement with the environment that they live in. An example of this would be in a habitat where there are red bugs and green bugs. In the article “Natural Selection

Second, how does natural selection affect the evolution of species on earth? Natural selection affects the evolution of species on earth by getting rid of the species that aren’t fit or don’t have proper adaptations for the environment that they live in. Species that have better adaptations for the environment they live in are more successful at surviving. According to American Museum of Natural History, natural selection is a mechanism by which populations adapt and evolve. In its essence, it is a simple statement about rates of reproduction and mortality: Those individual organisms who happen to be best suited to an environment survive and reproduce most successfully, producing many similarly well-adapted descendants. After numerous such

Natural selection is survival of the fittest. For example, a species that has stronger traits will use those traits to survive and when they eventually reproduce, they produce offspring that contains those traits (Kahn). The species with weaker traits may have more trouble surviving and therefore may die before reproduction. If the weaker species manages to survive, they still may not be strong enough to complete the process of producing offspring (Kahn). This means that traits that are stronger and better reproduced will be more evident in generations to come. Every living organism faces natural selection, including the human body.

In Generation 3, we can see there is different pairs of color dot in the sexual experiment which produced different color dots than the original one. For example, the same 2 color dot can produce different color offspring, as the chart above, two lime produces 2 cream 4 lime and 2 brown. In Asexual chart, the color of parent can only reproduce 1 type of offspring, because they reproduce as single, and there is no diversity in each individual. Thus, Sexual reproduction has more diversity than Asexual reproduction. Asexual reproduce from single parent, there is no way to reproduce variation, they are the individuals that have to same DNA from their parent, their traits are the same automatically. In other hands, There are 2 parents reproduce offspring in Sexual reproduction. Their offspring is combine with the sperm and egg from the parents, and the sperm and egg include different chromosomes which has two different traits from the male parents and the female parents, then the offspring include some traits from the male parents and some from the female. Over time, the offspring

The definition of evolution is that species over time will change. They will start to adapt over time and become a new species. You see this happening throughout the world and over the course of our planets history. In this lab we will be testing different hypothesis and observing them to make conclusions if they can be justified or not. There are three different parts first is the Artificial and Natural selection, the second is the fossil record, third is comparative anatomy, biochemistry, embryology and the last is Biogeography.

Selection is the functional relationship between phenotypes and fitness. Natural selection is the production of organisms according to their physical attributes whereby off springs of the younger generations takes the strong, desired and inheritable aspects of their parents. They become more adapted to the environment although some does well than others according to their individual traits which are attributed to their phenotypes (Sinervo, 1997). According to Charles Darwin, fitness can be described in three different forms of selection which interferes with the mean of phenotypic traits in a population. They include: directional selection; stabilizing selection; and destructive selection.

This question ties with what was mentioned earlier that nature does not identify problems or feautures that make oranisms succesfful but instead natural selection responds to phenotypic variation in a population. Artificial selection doesnt have a direct natural correlation to the phenotypic variation but instead its based on what humans decide to consume/buy etc, doesnt necessarily have to be the best thing for them.

Natural selection:The process by which organisms that are best adapted to their environment are more likely to survive and reproduce.

Natural selection is the process in which heritable traits that make it more likely for organisms to survive and successfully reproduce become more common in a population over successive generations. Each of us individuals is specifically shaped and formed by our own genetic pattern. We inherit this pattern half from are mother and half from are father. The cause of this is the proximate cause that led it’s phenotype to ultimate causes. Much of we know today about evolution derives from the late great pioneer, Charles Darwin. Charles Darwin was an english naturalist that even from an early age was very interested in outdoor pursuits. Early in his prep career his father tried sending him to the University of Edinburg to pursue his medical

Evolution by artificial selection and natural selection have in common that they both favor certain traits over others. Moreover, they select on traits that are heritable, but they differ in the way traits are selected. Natural selection favors multiple ways to improve an individual’s fitness while in artificial selection, humans decide which traits they want to have in the next generation, which actually reduce the individual’s fitness.

In most cases sexual difference are with in species may intersexual or intrasexual, but according to Darwin there are other ways sexual difference can occur in a species. Within the species sexual difference can based on the genetics and the their genotypes. The species sexual difference can be based on what traits are being expressed. Take for instance the sex chromosomes where males posses the XY chromosome and females posses the ZY chromosome. When evaluating the chromosome in mammals, males have a penis to ejaculate sperm and females have mammary glands to produce milk for the young.

Artificial selection and natural selection are different forms of the same practice that Charles Darwin observed. Artificial selection is when man controls the breeding for a specific trait just like genetic engineering where scientists alter and clone genes to produce a new trait in an organism. At the same time, natural selection is based on environmental conditions. Natural selection is Darwin’s famous theory stating evolutionary changes that occur through the production of variation in each generation. Organisms that are best suited to their environment

If these traits that it possesses that made it different were useful than that creature may reproduce more than normal. Of course in Darwin’s day DNA had not been discovered but it was known that traits were passed to offspring. Natural selection is when the organisms with good traits survive the trials of nature. Artificial selection is what breeders do, the cow that gives more milk, or the plant that produces larger fruit are selected to be reproduced. Encyclopedia Encarta defines natural selection as “the process by which environmental effects lead to varying degrees of reproductive success among individuals of a population of organisms with different hereditary characters, or traits. The characters that inhibit reproductive success decrease in frequency from generation to generation. The resulting increase in the proportion of reproductively successful individuals usually enhances the adaptation of the population to its environment”