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Essay / Research Paper Abstract
A 3 page overview of the theory of evolution. This paper outlines the usefulness of the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology as evidence that evolution is a valid concept. Bibliography lists 2 sources.
Page Count:
3 pages (~225 words per page)
File: AM2_PPevolEvdnc.rtf
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Unformatted sample text from the term paper:
common source and that species diverged through a process of natural selection, a process through in which the strong and fit survive to perpetuate their genes but in which the
weak and unfit die off. More specifically, evolutionists believe that primitive life was spawned in this event then evolved into the more complex forms that we know today.
Proponents of the theory of evolution point to the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology as evidence of the theorys truth. Each of these points
of evidence, of course, is directly dependent on the other. According to the theory of evolution, organisms that are best adapted to a
particular set of environmental parameters out-compete those who are not as well adapted. In other words, animals which are anatomically well-suited to their environments are considered "fit" while animals
which are not are considered unfit. Consider, for example, the classical example the finches that Darwin encountered on the Galapagos Islands (Geospiza fortis, Geospiza scandens, Geospiza fuliginosa and Geospiza
magnirostris). Over time these finches developed unique beak morphology that allowed them to thrive in their specific environmental niche. The
adaptations noted in Darwins finches were a phenotypic reflection of these species genotypes. In other words, these species are characterized by an outward appearance which is a result of
their genetic makeup. This phenotype was adapted to a narrowly defined ecological niche. Two of these birds fed on one species of plant, for example. This plant
was Tribulus cistoides (Coyne 102). As a result of minute differences in beak morphology, however, these birds differed in regard to whether they fed on the large or smaller
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