The Process of Evolution Essay

The Process of Evolution Essay

Length: 980 words (2.8 double-spaced pages)

Rating: Better Essays

Open Document

Essay Preview

Without evolution, and the constant ever changing environment, the complexity of living organisms would not be as it is. Evolution is defined as a process that results in heritable changes in a population spread over many generations (8).Scientists believe in the theory of evolution. This belief is based on scientific evidence that corroborates the theory of evolution. In Figure 1 the pictures of the skulls depict the sequence of the evolution of Homo-sapiens. As the figure shows, man has evolved from our common ancestor that is shared by homo-sapiens. The change of diet of homo-sapiens over time has thought to contribute to the change in jaw structure and overall skull shape.

The process of evolution comprises of many complex of mechanisms. These mechanisms fundamentally allow the progression of speciation and adaptation to occur. There are 4 common kinds of evolutionary mechanism of change: Natural Selection, Genetic Drift, Mutation and Migration.

Natural selection is based on the concept “survival of the fittest” where the most favourable individual best suited in the environment survive and pass on their genes for the next generation. Those individual who are less suited to the environment will die.

Another mechanism is a hereditable type of evolution is mutations. Mutations are alterations to a gene. Mutation can be harmful, beneficial or neutral. Mutations are the origin of the source of genetic diversity (9).Mutation that are harmful, hinders the chances of the organism chances of survival and are likely to die along with the mutations. Beneficial mutations increase the chances of the individual to survive in its environment, and they will be more likely to reproduce and pass on the gene to future generations (9).

Migr...


... middle of paper ...


...ley.edu/evosite/evo101/IIIADescent.shtml (12)

Migration (31/03/14)
https://www.blackwellpublishing.com/ridley/a-z/Migration.asp (13)
http://www.ndsu.edu/pubweb/~mcclean/plsc431/popgen/popgen4.htm (14)

Genetic Drift (31/03/14)
http://www.wisegeek.com/what-is-genetic-drift.htm (15)
http://www.nature.com/scitable/definition/random-genetic-drift-genetic-drift-201 (16)

Lamarck inheritance
http://lamarcksevolution.com/evolution-an-introduction/ (17)
http://evolution.berkeley.edu/evolibrary/article/history_09( 19)


Vestigial organs
http://www.factofun.com/top-10-vestigial-organs-human-body/ (18)

MRSA
http://evolution.berkeley.edu/evolibrary/news/080401_mrsa
http://www.myvmc.com/diseases/methicillin-resistant-staphylococcus-aureus-mrsa-staph-infection/(22)


Theory of acquired inheritance
http://necsi.edu/projects/evolution/lamarck/lamarck/lamarck_lamarck.html (20)

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Evolution: Mutation, Natural Selection, Genetic Drift and Gene Flow Essay

- What is evolution and how does it work. Evolution is the theory of how one form of life changes into another form. Evolution also is the change of a population’s inherited traits from generation to generation. Evolution helps to explain why an animal, human, and plant looks the way it does and acts the way it does; it gives an explanation of the history of life. Genes come in many varieties and the evolution helps to make it happen. Mutation, natural selection, genetic drift, and gene flow: the four forces that make the evolution work....   [tags: Process of Evolution]

Better Essays
758 words (2.2 pages)

Essay on The Process of Adaptive Radiation and Link it to Evolution

- Charles Darwin, the father of evolution theories, stated that the intelligence or the strength of specie does not guarantee its survival and the continuation of its genetic line. The individual in a species with the suitable genetic material will continue to exist if sudden changes that require adaptation quickly bloom. These traits, which are not necessarily desirable, allow the individuals that contain them to live on and will be passed on from generation to generation. He describes these individuals as being ‘responsive to change’ because he sees them as the most sensitive to disturbances....   [tags: evolution theory, radiation, charles darwin]

Better Essays
2695 words (7.7 pages)

The Debate on Evolution as a Natural Process Essay examples

- ... Natural selection is based on the concept of “survival of the fittest”. Organisms that can adapt the best will survive. Darwin’s idea behind natural selection is fairly elementary, however, it is often misunderstood. There are differences in traits, and heredity. If you have variation, different reproduction and heredity, you have evolution. Mutation, also one of the basic components of evolution, is the random change of DNA. They can be good, bad, or neutral. Some mutations may not even be passed down to the off spring....   [tags: universe, fittest, organisms]

Free Essays
641 words (1.8 pages)

The Process of Human Evolution Through Natural Selection Essay examples

- The process of human evolution through natural selection is an idea and a reality that is commonly misunderstood by a part of society. The process of natural selection is a continuous ongoing process that affects all living beings no matter what genus, species or even life form, all forms of life that are capable of reproduction are affected. In order for natural selection to take place there has to be a reproduction process that takes place within that species and pass on its genetic material to future generations....   [tags: reproduction, survive, species]

Better Essays
893 words (2.6 pages)

The Evolution of the Federal Budget Process Essay

- Federal spending is necessary for the economy and is essential to the accomplishment of national goals and advancement. This is why a budget is needed, however, there is no actual process mentioned in the Constitution that explains how Congress should do this. The Constitution states: No Money shall be drawn from the Treasury, but in Consequence of Appropriations made by Law; and a regular Statement and Account of Receipts and Expenditures of all public Money shall be published from time to time....   [tags: federal spending, government budgeting]

Better Essays
997 words (2.8 pages)

Essay about Evolution as a Creative Process

- Evolution as a Creative Process Evolution is a process that has taken billions of years, and will continue for billions more.It takes hundreds of generations for an evolutionary change to occur, or an impending extinction to become evident. Humans find it difficult to see themselves evolving due to their longer life span, and fewer generations over time compared to other species. It has become a common misconception that humans are finished evolving, and that they have reached the best and most efficient beings possible....   [tags: Science Art Essays]

Better Essays
978 words (2.8 pages)

Essay on The Process of Natural Selection

- Charles Darwin’s theory of natural selection explains the general laws by which any given species transforms into other varieties and species. Darwin extends the application of his theory to the entire hierarchy of classification and states that all forms of life have descended from one incredibly remote ancestor. The process of natural selection entails the divergence of character of specific varieties and the subsequent classification of once-related living forms as distinct entities on one or many levels of classification....   [tags: Natural Selection, Evolution Essays]

Better Essays
1714 words (4.9 pages)

An Introduction to Evolution Essay

- An Introduction to Evolution      What is Evolution. Evolution is the process by which all living things have developed from primitive organisms through changes occurring over billions of years, a process that includes all animals and plants. Exactly how evolution occurs is still a matter of debate, but there are many different theories and that it occurs is a scientific fact. Biologists agree that all living things come through a long history of changes shaped by physical and chemical processes that are still taking place....   [tags: Evolution Science Biology Essays]

Better Essays
3627 words (10.4 pages)

Organic Evolution Essay

- We act like animals, we eat like animals, and we are animals. The many theories of evolution such as Darwin's theory of evolution prove to us that we choose to believe that we are not animals when we really are. Evolution is the sequencial process of change over periods of time, which shapes and establishes the formation of modern man. In referring to evolution, the word means various changes. Evolution refers to the fabrication and development of life on earth. "Organic evolution" is the concept that all living beings evolved from simple organisms and have changed throughout the periods of time to create many and various types of species....   [tags: theory of evolution]

Better Essays
3265 words (9.3 pages)

Human Evolution Essay

- For centuries, man has been curious about his origins and the origins of the life surrounding him. Countless explanations have been formulated using “evidence” that “proves” the story to be true. However, in 1859, Charles Darwin published a monumental theory in his book called The Origin of Species. In his book, Darwin outlined his theory of evolution by natural selection (Darwin, 1859). Although complex, this story is extremely useful in explaining the origins and history of life as we know it....   [tags: The Future of Human Evolution]

Free Essays
1016 words (2.9 pages)