More handpicked essays just for you.
How natural selection works essay
Explain charles Darwins concept of natural and social selection
How natural selection works essay
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Biology, the study of life and living organisms, is complex and encompasses a multitude of theories and ideas. In AP Biology, the first unit covered was evolution. Chapters 29, 31, 39, 40, 41, 42, and 43 in the textbook, Campbell’s Biology in Focus, not only discusses the four main ideas of biology: evolution, energy, information, and systems, but it also gives examples of each in order to help guide the reader’s understanding of the concepts. The first big idea of AP Biology is: “the process of evolution drives the diversity and unity of life.” Chapter 39 in the textbook encompasses this main idea through discussing natural selection and genetic diversity.
In Chapter 10, Carroll goes over one location example, Wyoming, one tree example and two animal examples, the codfish and bighorn ram. I will first start with the state of Wyoming. Carroll starts by uses Wyoming and the fossils found on the site to make his theory that the “fittest” is only conditional. Wyoming is a droughty state where the climate makes water evaporate fast.
1 )artificial selection in current world? Answer : Artificial selection is the process of changing the characteristics of animals by artificial means. It was originally defined by Charles Darwin in contrast to the process of natural selection, in which the differential reproduction of organisms with certain traits is attributed to improved survival and reproductive ability in the natural habitat of the organism. For example, animal breeders are often able to change the characteristics of domestic animals by selecting for reproduction those individuals with the most desirable qualities such as speed in racehorses, milk production in cows, trail scenting in dogs.
After reading through and reviewing the articles, one can see that there is a clear trend in the research being done that shows predominantly negative impacts selective breeding has on dogs. Health in selectively bred dogs is the top concern when dealing with ethics, due to the fact that in many cases lives are cut short and the quality of life is viewed as, to many, not worth living, which is seen as unfair to the dogs in an ethical viewpoint. From dog show judges to veterinarians, there are many known diseases in dogs that is the product of selective breeding, and although there have been attempt to fix these errors, the topic is still ongoing as hip dysplasia, breathing issues, and cardiac problems are still prevalent in certain purebreds.
Organisms can evolve to enhance their ability to catch prey, or flee predators. Coevolution occurs in a predator-prey relationship when the prey evolves in response to pressures exerted by its predator. The predator then evolves in response to the changes in the prey (or vice versa). Inheritable adaptive traits evolve through natural selection, the process by which organisms that have developed favorable traits are capable of surviving and reproducing at greater rates, thus passing their adaptive traits to their offspring. Birds and caterpillars have a predator-prey
Biodiversity is the differences of life on earth or in a specific location. There are three domains that consist of life in the world: Bacteria, Archaea, and Eukarya. Bacteria and Archaea are both prokaryotes. Prokaryotes are single cell organisms that lack a nucleus in the membrane nor other specialized organelles. For Eukarya it consists of four kingdoms: Protists, Plants, Fungi, and Animalia.
Is it worth it to have a society that discriminates and demonizes those who have a lower status in society? Would you like a society where the leaders claim that survival isn’t a right but a privilege that is earned? This is the world of Social Darwinism where people are considered either “weak” or “strong” but not equal. I would like to say that this kind of society would not be good as it would only highlight humanity’s shortcomings. Now, I would like to discuss the history behind this idea and how this society would operate in modern times.
Natural Selection is the long gradual process in which Biological traits either become more or less common in a population as a function of the effect of inherited traits on the differential reproductive success of organisms interacting with their environment. In Darwin’s work The Origin of Species he also mentioned evidence for the Theory of Evolution from his voyage around the world on The H.M.S. Beagle. The Origin of Species is probably the most influential work on evolutionary biology. The Origin of Species will help prove my thesis because it introduces the ideas that we base on evolutionary biology today.
Social Darwinists first began influencing Western thought in the nineteenth century and well into the twentieth century. They argued that “white European men were wealthier and better because they were more highly evolved than white women, people of color, and any other race”. (the making of the west, Hunt, pg. 724) During the nineteenth and twentieth centuries Social Darwinism influenced the lives of European women, colonial subjects, and racial minorities by implementing law and policies to further show their superiority, they “promoted racism and sexist behavior”. (hunt, pg.724)
Eugenics is the science of using artificial selection to improve genetic features of the population. It is thought that improvement of the human race can be seen through sterilization of people who exhibit undesirable traits and selective breeding. Often called Social Darwinism, the concept was widely accepted during the time of World War I. It quickly became a taboo after World War II when Nazi Germany used it as an excuse for genocide. The thought of improving the human race by manipulating who is allowed to breed can either be appalling or compelling.
Social Darwinism is the result of applying Charles Darwin’s theories of evolution to human society, and one of the forefront Social Darwinists was none other than William Graham Sumner. In general, the concept of Social Darwinism has many pros such as “breeding” out weakness and disease, supporting the strong, and encouraging the development of a more advanced society. It also as many disadvantages, however, such as a smaller gene pool, hindering the weak, and controlling who gets to have children. Using the writings of both Darwin and Sumner, these pros and cons will be explored to prove that the negatives of Social Darwinism outweigh the positives. To begin, the first pro of Social Darwinism is the elimination of weakness and disease.
Since now we know lots about artificial selection, let 's hear a bit about natural selection also known better as, the process whereby organisms better adapted to their environment tend to survive and
Is Genetic engineering Safe? Genetic engineering is the modification of an organism’s genetic composition by artificial means, often involving the transfer of specific traits, or genes, from one organism into a plant or animal of an entirely different species. Human beings ought to consider the pros and cons of genetic engineering before using it. It is a contentious topic because people have different views of weather genetic engineering is safe or not.
The Evolutionism or Creationism Debate The evolutionism-reationism debate has been going on for centuries among christians and scientists. However, creationism is said to have more logical proof of their points being the strongest. According to Charles Darwin, Natural selection is the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin, and it is now regarded as be the main process that brings about evolution.
Three different sides will be discussed in this paper. First is the theory of natural selection, often called the survival of the fittest. Natural selection as quoted by the Merrium Webster Dictionary is, “a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment.” For example there is a litter of cats. One of these cats is a lot faster than the other cats and is therefore able to get food easier.
