Evolution as Fact and Theory Essay

Submitted By ryanbush56
Words: 656
Pages: 3
Open Document
Ryan Bush
4-26-12
Mr. Beaty

Evolution is any change across any successive generation in their heritage. Charles Darwin theorized evolution by a thing called natural selection. It includes three facts of a population. One, more offspring are produced than can possibly survive. Two, traits vary among species leading to different rate that they can reproduce and survive. Three, different traits to survive are heritable. So when a generation dies the ones that lived the longest and had the better traits to live pass them down to their offspring, resulting in their offspring being able to have those genes and survive better. All of the organisms today are believed to have slowly changed from one common ancestor and have changed their way into what they could survive best at. Darwin had many influences on his study of evolution there were many key players such as Lamarck, Malthus, Lyle and Wallace. Lamarck proposed that organisms try to change their traits in their lifetime so that eventually the genes they altered would be passed down to their offspring. Lamarck got this theory from giraffes. Lamarck thought that the giraffes did not have long enough necks, so they could not reach the food in top of the trees they wanted. So the first ancestor of the giraffe stretched and stretched and stretched his neck to reach for food. Then his offspring repeated the same process resulting in their neck growing longer and longer through each generation. This gave Darwin a good idea of how organisms can change to adapt to their environment, but he still did not think it happened during the organisms life. Thomas Malthus proposed that with populations increasing more and more it would result in total war, famine, and anarchy is humans to try and survive. It would put a “roof” on the population growth and it would stop. Humans would strive out of their way to get food. Malthus basically meant that only the strong will survive and reproduce to pass on their genes of being able to tough things out and live better than other individuals. Darwin saw how this was true in animals also. He noticed that an organism better equipped with genes to get certain foods it needs, or able to survive better than this organism without those traits would. Lyle changed Darwin's thinking that small changes over time would lead to big differences in an organisms make up. Geographical changes especially would affect organisms. This gave Darwin more proof that organisms
Show More

Related Documents: Evolution as Fact and Theory Essay

Research skills Essay

Teaching About Evolution and the Nature of Science Working Group on Teaching Evolution, National Academy of Sciences ISBN: 0-309-53221-3, 150 pages, 8.5 x 11, (1998) This free PDF was downloaded from: http://www.nap.edu/catalog/5787.html Visit the National Academies Press online, the authoritative source for all books from the National Academy of Sciences, the National Academy of Engineering, the Institute of Medicine, and the National Research Council: • Download hundreds of free books…

Words 4822 - Pages 20

Summary: Should Creationism Be Taught In Schools

Creationism Be Taught in School like Evolution? Thesis: Creationism should be taught in school like evolution. I. Information about creationism. A. God created men. B. Not scientifically proven. C. Evolution/ creationism not proven it still makes better since. II. Why teach creationism? A. School educators want the students to grow, teach more than one theory. B. More should know about creationism. C. Schools may want to know more about creationism rather than evolution. III. School boards make too many…

Words 1893 - Pages 8

Creationism In Schools

School board required high school science classed to tell students evolution not only option. Intelligent design as well. Organisms too complex to evolve through evolution alone. Some must be created by designer. Bold new scientific theory. Based on science, not religion, therefore should be discussed in class. opening path of inquiry, new ways to think. Critique of scientific doctrine of evolution is science as well. Gaps in evolution exist, intelligent design option SOME MAY ARGUE: Rechristianize…

Words 515 - Pages 3

Evolution paper

Cassidy Emmett Mrs. Warrem Bio 1 Period 2 Evolution Theory Charles Darwin is best known for his contributions to evolutionary theory. It was his theory that all species of life descended over time from common ancestors in a process that he called natural selection. He was an English naturalist and a geologist. He studied medicine and the University of Edinburgh. He also studied at the University of Cambridge which encouraged his passion for natural science as he helped to investigate marine…

Words 3417 - Pages 14

Evolution, Creationism, Or Intelligent Design Theories

Evolution Do you believe in theories? What about evolution, creationism, or intelligent design theories? Well, whether you believe in either one, all have implications related to anthropology. Evolution theory, is the process by which organisms change over time. Creationist theory, is the religious belief that the universe originated from specific acts of devine creation. Intelligent design is the pseudoscience view that certain things of the universe and of living things are best explained by an…

Words 586 - Pages 3

Evolution By Natural Selection Is Wrong Essay

Evolution By Natural Selection Is Wrong!! All living things face many questions throughout their life such as what am I and what is the purpose on earth? Over the past centuries, science have been investigating these questions. At the same time, many cultures around the world have answers to these questions as well. According to science, these answers are concerned as myths or made up stories. Cultures all over the world believe “GOD” or “An Intelligent Designer” made all the living things. Modern…

Words 1609 - Pages 7

A Brief Note On Intelligent Design

science and something that should be taught alongside evolution, and those who think of it as religion disguised as science. As a science teacher myself, I was very interested in this subject, and how school districts nationwide are pushing initiatives recently to put intelligent design in their biology classes. These school districts are struggling with the dilemma of whether or not to teach creationism as an alternative view to evolution theory. If, as many scientific creationists believe, God's…

Words 1695 - Pages 7

Anne Johnson's Monkey Trial

Especially the prayers of the Fundamental pastors that we clearly biased against evolution, praying prayers such as that the people should remain “loyal to God”. In that predicament “loyal to God” meant that God Himself was against evolution. The judge overtly siding with the religious prosecution combining with the fact that the judge made it clearly known that he “was a man of God” blatantly shows that the judge was allowing religion to influence…

Words 984 - Pages 4

Neutral Theory Paper

The neutral theory on molecular evolution was proposed by Motoo Kimura in an attempt to prove that when looking at the molecular level of evolution the cause of variation can be attributed to neutral or nearly neutral mutations. It is the combination of negative selection and random drift that act in a manner promoting evolution and not natural selection. Though natural selection plays a vital role in the diversity present in various species it acts only in a manner that would eliminate those mutations…

Words 975 - Pages 4

Essay about An Unnatural Selection: A Forward Look on Darwin

An Unnatural Selection: A Forward Look on Darwin’s Theory Biology Current Event Report “. . . From the first growth of the tree, many a limb and branch has decayed and dropped off, and these lost branches of various sizes may represent those whole orders, families, and genera which have now no living representatives, and which are known to us only from having been found in a fossil state . . . As buds give rise by growth to fresh buds, and these, if vigorous, branch out and overtop on all a feebler…

Words 1137 - Pages 5