· Download the full version above. It is common knowledge that Darwin s Theory of Evolution is one of the most influential scientific theories of modern day. This scientific theory takes the form of an ideology in which it is rarely contested and largely taken for granted. Placing unquestioning faith in the Theory of Evolution is counter-intuitive of science itself, as it is an undeniable trend [that Estimated Reading Time: 11 mins · Evolution essay is a paper that focuses on any aspect related to the evolution theory and diversity in nature. Since it is a scientific theory that is fundamental for the modern biological theory, an evolution essay also includes the facts, theories, hypotheses, and the history of the evolution theory among other topics/5(64) There are many theories of how humans came to be, although widely accepted evolution is only another theory. Evolution is “where changes occur in the gene pool of a population from generation to generation by such processes as mutation, natural selection, and
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Evolution as defined in biology, the continual process by which one form of life changes, or evolves, into another form. Some religious groups deny that evolution exists, but most scientists accept it as fact. The theory of evolution suggests that all plants and animals descended from one or several kinds of simple organisms. It also explains why there are so many different kinds of plants and animals.
The inherited characteristics of nearly all living things change from generation to generation. In most cases, this change is so gradual that it is noticeable only after many years, theory of evolution essay.
Eventually the accumulated changes may become so great that the descendant bears little likeness to its remote ancestor and may belong to different species. Discussion A. How evolution takes place? Natural selection. There are more plants and animals produced than can possibly survive, because there is not enough space and food to support them.
The result is competition between living organisms in the struggle for survival. The individuals in each group are not all exactly alike. Theory of evolution essay have varying characteristics, and these variations may either help or hinder them in their struggle to live. Organisms become extinct and die out, if they do not have enough of the kind of characteristic that enable them to get sufficient food and other necessities to withstand the climate, or to compete successfully with other forms of life, theory of evolution essay.
To explain how plants and animals develop variations, biologists turn to genetics, the science of heredity. Genetics shows that characteristics are passed from parents theory of evolution essay offspring by means of genes.
When a gene is altered in anyway, the offspring acquires a new characteristic not possessed by either parent. This change in the genes is called mutation. Sexual Recombination.
The combining of genes from two parents is called sexual recombination and controls the rate at which variations occur. It permits enough variation to allow progressive evolution but not so much variation that the changes would be chaotic.
The survival value of recombination is indicated by the fact that the large majority of plants and animals produce sexually. New species of plants and animals can appear only when a genetically distinctive population is prevented from exchanging genes with closely related populations. Geographic isolation, or the separation of theory of evolution essay groups by some kind of physical barrier such as mountain or desert, is the most usual type.
Genetic isolation is the inability of the members of two related groups to bear fertile offspring when mated. History of the Theory of Evolution Many ancient myths were theory of evolution essay to explain how the various plants and animals were created. Thales suggested that all life came from water.
Aristotle believed that living things could arise out of non-living matter, theory of evolution essay that more complex forms of life probably arose from simpler forms. With spread of Christianity, men throughout the Western World accepted the story of Creation as told in Genesis, the first book of the Bible. For hundreds of years no further scientific though was devoted to the origin of life. By the 18th century scientists had again begun to investigate the development of living things.
George Louis Buffon thought that environment acted directly to change the structure of plants and animals. Erasmus Darwin and Jean Baptiste Lamarck each advanced the now discredited theory that organisms inherit adaptations acquired during the lifetime of their parents. The basis for the modern theory of evolution was formulated independently by Charles Darwin, grandson of Erasmus Darwin, and by Alfred Russel Wallace.
They introduced their ideas about natural selection in joint papers read to a London learned society in The Darwin- Wallace theory was incomplete, however, because neither man knew much about genetics. In the theories of natural selection and genetic variability were fused by Theodozius Dobhanzsky, a Russian born American biologist, in Genetics and Origin of Species. In the first step, genetic variations occur through mutations or by a chance combination of inherited genes. In the second step, desirable variations—those that produce traits that help the organism survive—are passed on to the next generation and become permanently established in the species, theory of evolution essay.
When the theory of evolution first came to public attention in it was met with a storm protest and ridicule. Some people, misinterpreting the theory, thought it claimed that man was descended from apes. One religious objection to evolution was that it conflicted with the story of Creation as told in Genesis. In the United States some states passed laws making it illegal to teach evolution in public schools.
Most religious denominations now accept the theory, but in varying degrees. Some see no conflict between evolution and theology.
Others accept the theory only as an unproved hypothesis still others accept only those parts that do not apply to man. References: 1. Benton, theory of evolution essay, Michael. The Story of Life on Earth. Watts, Stein, Sara. The Evolution Book: the Story of Million Years of Life on Earth. Workman, Whitcomb, J, theory of evolution essay. The Genesis Flood: the Biblical Record and its Scientific Implications. Skip to content Home Free Essays Theory of Evolution essay. Related essays: The European Ground Squirrel essay History Of The Environmental Movement essay Human Beings essay Heavy Metal Pollution essay.
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· for only $ $11/page. certified writers online. Learn More. Thus, grounding its basic postulated on scientifically proved facts, the theory of evolution poses quite a contrast to the ideas of the existing religions and, therefore, requires a comparison to the other explanations of the origin of life. It must be admitted that the theory of evolution has a number of legit points and has all the rights to be · Evolution Essay Evolution is the theory that all living forms came from ancient ancestors. Through a series of mutations, genetic drift, migration, and natural selection today’s descendants show an amazing amount of similarities and blogger.comted Reading Time: 7 mins · Evolution essay is a paper that focuses on any aspect related to the evolution theory and diversity in nature. Since it is a scientific theory that is fundamental for the modern biological theory, an evolution essay also includes the facts, theories, hypotheses, and the history of the evolution theory among other topics/5(64)
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