For: Mrs. Talbot bb
Date Due: Oct. 9/96
By: Neel Ghelani89
For many years, it has been widely debated how modern man came about. In this essay, I will explain the ideas of the three main theories: Evolution, Creation, and Intervention. I will also discuss which theory I believe and why it is that I believe it.
Evolution, in biology, is the complex process by which organisms which originated on earth change because of changes in their environment and their function on earth. The earliest fossils ever discovered are from single celled organisms which resemble today's bacteria. People who believe in evolution believe that for approximately 3.4 billion years these single celled organisms have changed and evolved into many different species including humans. This theory also states that humans and other species continue to evolve today and as a result of all these changes they will eventually become a totally different species then what they are now. Evolutionists believe that evolution has created many organisms spread across the globe, some of which have become extinct and some of which are the plants and animals which live today.
The theory that groups of organisms can be transformed into different organisms has been suggested many times since the early 1800s, when scientists began looking for evidence that the evolution process took place. "The most outstanding evolutionists in the nineteenth century was Jean Baptist de Lamarck, who argued that the patterns of resemblance arose through modifications of a common lineage-for example , that lions tigers and others all descendant from a cat like ancestor." (Dickey p.42) It had already been a widely accepted theory that different animals adapt to different modes of life and environmental conditions. Lamarck argued that physical and mental changes occurred from animal adaptations to different environments. Once the animal changed, Lamarck believed that the changes would be passed on to the offspring through genes. Unfortunately this theory was never really scientifically tested.
Charles Darwin successfully explained the evolutionary process , with his famous book On The Origins of a Species by Means of Natural Selection. In this book, Darwin stated that, in the environment organisms who have better qualities such as being faster or trail scenting are more fit to survive. Consequently they are able to take the vital ingredients required by unfit organisms such as living space and food. Eventually, they kill off the unfit and unadapted. This theory is best known as, survival of the fittest, and can be summarized in the following statement. When environmental conditions change populations must change in order to be fit and thus survive.
Understanding the evolutionary process depends a great deal upon the interpretations of the fossil record, which many consider to be incomplete because many fossils can not be found. For this reason, there are many different views about what the fossil record states. One fact that puts doubt in the evolution theory is that when a fossil appears in the fossil record it does so very abruptly, and then stays their for several years. The fossil usually does not show the gradual changes that take place in the evolution of species. For this reason, Jay Gould of Harvard university developed a "punctured equilibrium" theory stating that the changes do occur rather quicker than some believe.
"The notion of creation is defined as the production of an existing thing out of no preexisting material".(Dickey 237) In the bible and in other comparable ancient literature, creation is a theme used to explain how human beings came to earth. In the bible and most other creation stories from ancient religions, the universe is said to be a great mess in which order was introduced by...