Why Are Living Organism so Diverse ?

One example of Darwin’s idea is a much more recent discovery relating to HIV. Today’s scientists and researchers can actually see the process of natural selection in front of their own eyes, which is something that, unfortunately, Darwin could not do. Once HIV is inside the white blood cells of a patient, the disease reproduces briskly, which causes causes mutations. Every time after the cell reproduces and drugs are administered to the patient, the drugs go in and attack the weak cells, killing them off, but the virus dominant ones win over the drug, eventually becoming almost immune to them. Each time a new drug is administered, the virus evolves to resist it. This is proof of evolution, regarding how the virus evolves over time, and proves

•Understanding that diversity includes not only ways of being but also ways of

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

Artificial and natural selection go along with the changing of a species over time. The best example of this is during the 19th century during the industrial revolution. During this time the white typica moth was the predominate species. Over the course of the revolution with the pollution and the environment changing a new species of moth came to be called the pepper moth which was black. This was a big change that showed natural selection because you see that all the white moths started getting picked off one by one because they had nowhere to hide from predators, but the black moths did which led them to become the dominate species

We have been facing different environments and somehow our ancestors battle their way through and brought us here today. Humans are one of a kind because they were able to evolve by trying to accommodate to the environment they were in. In the video Becoming Humans: First Step they show how Africa’s environment was all over the chart forcing our ancestors to adapt to multiple environments. They were able to find out this information by looking at the rocks that were left in the area. Rick Potts who is a rock genius was able to clarify that in parts of Africa, where most of our ancestors bones were found, there was a rapidly change in environment happening. It went to wet and dry and they cycle continued. Since there environment was changing too fast. It made it very difficult for them to stay who they were and forced them to start to evolve.

In the film Journey of Men: Genetic Odyssey anthropologist Spencer Wells proved that early humans migrated out of Africa. In order to prove that all humans share the same family history, this essay will first talk about where humans evolved from, the first humans in Africa, their DNA and chromosomes, and the migration itself.

Natural selection is when organisms develop traits, so that they will be better adapted to their environment. Natural selection affects every living thing in the world. There are the examples of animals blending into their environment to hide from predators. Also there is when a thing living in a cold climate grows more hair to become warmer, and not die. Certain traits are more common in a population because the traits increase an individual's probability of surviving and reproducing.

We often have misconceptions whether we share some DNA with common ancestors and we now have the ability to fully understand that we do. When people first meet, they often ask where we are from and respond with an ethnic background, but do not take the time to realize how we came to be. Not many think back to the time where modern humans truly became modern humans and see if we even shared DNA with them. Not many like to admit that they share DNA with those who were “clueless and lived in caves”. One of our common ancestor, Homo neanderthalensis, were found around 400,000 to 40,000 years ago in most of Europe and Southwest Asia (Smithsonian National Museum of Natural History, 2016). Upon discovery, scientists were able to use the combination

Throughout time man has evolved. Common belief is that Homo sapiens evolved from primates and then, by following the Darwinistic theory of evolution, Neanderthals, when in fact they all evolved alongside each other, sharing common ancestors rather than directly coming from one another. This then lead to similarities in the DNA as well to the high probability that there was interbreeding between the species; phylogenic tree mappings of the mitochondrial DNA of numerous different modern humans from around the world as well as the mtDNA of an assortment of Homo neanderthalensis were able to show the similarities of the two species along with the human descent from their origins in Africa to other areas of the world.

An example that I am going to use is artificial selection of working dogs (Huntaways) used in the farming industry. Artificial breeding has been extremely important in ensuring that you are breeding the best dogs for the job. This means that farmers will breed their best dogs together to ensure that he has high quality working dogs. Farmers that also compete in dog trialling, breed the dogs that are best suited to the sport of dog trialling together because there is no point breeding a high quality working dog with a Labrador because you will only end up going backwards in terms of producing high quality working dogs.

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

Human evolution is the gradual process in which people, or Homo sapiens, originated from apelike ancestors. Scientific evidence, particularly in the form of fossils and secondary remains, show that the physical and behavioral traits shared by all people evolved over a period of approximately six million years. Humans are primates. Both genetic and physical similarities show that humans and the great apes (large apes) of Africa, chimpanzees (including bonobos, or so-called “pygmy chimpanzees”) and gorillas share a common ancestor that lived between 8 and 6 million years ago. The volume of fossils found in Africa suggests that most evolution occurred there and is likely the place of origin for early humans. This brings to fruition the “out of Africa” theory, also called the “single-origin hypothesis.”

Evolution explains the unity of life because all life shares a common ancestor, the first cell or cells, and that everything descended from them. Life was once very simple, but because of the ability to adapt to the environment (a characteristic of all living things), things evolved over time and got more complicated. Organisms slowly changed in order to survive better in their environments. For example, in the chapter, it shows that deer like to eat smooth leaves and not hairy leaves. As a result of that, the hairy seeds have an advantage over the smooth leaves and reproduce more successfully. Slowly after time, there were more and more of that species. This is also why evolution also explains the diversity of life. Different organisms evolve