Charles Darwin's Principle Of Natural Selection

fitness does well in its habitat and passes those favorable alleles onto its offspring when it reproduces.

To drive evolution forward, there must be a variation in the population. Though Darwin may have been speaking of mainly physical attributes, I believe behavioural characteristics must also meet these basic requirements of evolution. One may argue that Darwin’s theory of evolution speaks mainly of directly inheritable traits

In the process of natural selection, individuals that have certain inherited traits tend to survive and

Natural selection involves the adaptation of a species to better survive in their designated environment. When organisms reproduce, they pass down their DNA to their offspring. For example, a child that is tall is the result of their parent being tall as well. Parents pass down traits to their children. When it comes to survival, some organisms are better at it than others based on the traits that they have acquired. Some organisms can camouflage from predators while members of the same species do not obtain that same trait. With that in mind, the ones that can camouflage will most likely survive in certain environments and they will then pass on that trait when they reproduce. Since these traits are advantageous, they are passed on to more and more offspring through time and it will eventually overcome any original traits that species first started out with. It’s kind of like the current state of sexual misconduct in Hollywood. We have our directors, actors, agents, and so forth. However, as time goes on, some do not survive in the business based on their inherently evil traits and they get weeded out just like some species in the wild. As generations pass, these organisms have then adapted to fit the environment and better survive based on their inherited traits.

Variation is the forefront for progression of a species. All species have wide varieties of

He finally observed that overtime these birds developed different physical characteristics to help them be able to survive and adapt to their surroundings. Darwin developed the “Natural Selection” theory that stated that plants and animals adapt to their surroundings and environments in order to survive. He also stated that older generations of these species would eventually die out, because they do not have the newer characteristics that needed to be developed in order to live.

If members of a species show variation, and there is a struggle for existence, then any sort of trait that carries some small (or large) advantage to survival is likely to be transmitted to the next generation. By being able to survive better, these members of a species are able to reproduce more, leading to a tendency to pass down that advantaged trait more often to their offspring. This repeats ad absurdum, leading to evolution and survival of the fittest. Survival of the fittest counters Paley’s second and third premises; that of there are two possibilities for how organisms came to be perfect for their environments and that it must be design by a designer. Darwin proposes an alternative explanation for evolution as discussed above.

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

Offspring that possess favorable traits are more capable of surviving into adulthood and thus reproducing. We know from genetics that there is an increased likelihood that their offspring would also possess that desirable trait. The population of individuals possessing the trait would increase as more individuals possessing the trait survived to reproductive years, and fewer without the trait did not. Natural selection can help prevent a species from going extinct if they were to face adverse conditions that

The process of evolution by natural selection begins with the overproduction of offspring, continues with the variation of these offspring, then the selection of the offspring that best fit the environment, and finally, the acclimatization of these offspring to their surroundings. While these steps don’t necessarily have a concrete duration of time in which they take place, the process follows this general pattern. Overproduction is necessary to be able to select from the most “suitable” or “fitting” offspring from a sizeable group. The three or so steps following overproduction coincide with one another and are necessary for the adaptation of offspring in an environment.

Darwin theory, he first started talking about an organism, his theory was that in a population shows a difference in traits. The following theory was survival of the fittest, it is when one appears to look like their parents and they are comfortable in their environment, and has the possible to live longer and might reproduce being relaxed in their environment. Beneficial Traits is to increase in frequency over time in a population since individuals with traits are more likely to produce and will pass on the gene to the next generation. It is not important to be a perfect specimen, but important to produce more babies. In addition, Darwin theory was based on the

3:Some individuals have adaptive charecteristics that enable them to survive and reproduce better than other individuals thus those organisms are selected bu natural selections which show good reproductive potential.

Natural selection happens when individuals increase their chances of survival and ability to produce offspring with the same traits. As the individuals with this trait mate, the genes spread throughout the population and individuals with those genes then increase in number and pass this useful trait on to their offspring. Therefore, natural selection explains how population adapt to their environmental conditions. Also, unlike evolution, which occurs in populations, natural selection occurs in individuals (Miller, 2007, pg. 85). The term “survival of the fittest” refers to organism that possess more advantageous traits, and therefore continue to survive in their suited environments, even when other organisms are unable too. Their favorable

Many scientists believe variations are caused by environmental factors, such as food availability, weather and more; and that species evolve when environmental conditions change to increase the species survival. Darwin censures this idea; he believed that the main cause of variation is due to reproduction (Chapter I). Darwin suggested that parents pass down specific characteristics to their offspring, and those variations are continued on in the following generations. The problem with Darwin’s theory of reproduction is that Darwin did not comprehend how or why some characteristics are perennial and how others are not. Darwin’s inferences on variations also conflict with the idea that God created species independently, which was widely understood by many people in a time where religion was prominent (Chapter II).

Evolution depends on both inheritance and selection (Arnold, 1994). Heritable traits having some advantage to an organism must be passed on from one generation to the next. As a result, the organisms that have inherited these traits will be better suited for survival in a specific environment. In other words, the ability for an individual to survive is not enough to fuel evolutionary progression- there must be reproduction taking place as well (Figure 1).