evolution
Evolution, a process of change through time, is what links together the enormous diversity of the living world. A lot of evidence is present that indicates that the earth has had a very long history and that all living things arose in the course of that history from earlier, more simpler forms. In other words, all species have descended from other species and all living things share common ancestors in the past. Basically, organisms are what they are because of their history. Today there are many theories and possibilities related to evolution which contribute to our understanding of the process. Our planet was born 4.6 billion years ago as a great cloud of dust and gas condensed into a sphere. As gravity pulled this great cloud tightly together, heat from great pressure and radioactivity melted the planet’s interior and most of its mass. For millions of years after this, strong volcanic activity all over the planet shook the earth’s crust. At the same time, the earth was showered by a very strong meteor shower. From studying volcanoes, it is known that eruptions pour out carbon dioxide, nitrogen, and other gases. It is also known that meteorites carry water, in the form of ice, and many carb
Some topics in this essay:
DNA Eukaryotic, Earth Scientists, Evolution Evolution, Darwin’s Wallace’s, Revolution England, Miller Urey, Bruce Alberts, Jean Baptiste, Lynn Margulis, RNA DNA, natural selection, earth’s atmosphere, dark-colored moths, tree trunks, amino acids, common ancestor, nucleic acids, peppered moths, aerobic prokaryote, darwin’s theory, darwin’s theory natural, ancestors stretched necks, necks ancestors stretched, earth’s atmosphere formed, natural selection action,
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Approximate Word count = 2685
Approximate Pages = 11 (250 words per page double spaced)
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