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Two Billion Years Of Earths History
666 wordsThread of Life By: Roger Lewin This book covers the patterns of evolution and how each species and time era had an effect on Earth's history. It covers the world from the beginning to the present times telling us all that has happened in between. The book begins by introducing us to geology and how it is used in telling time and finding fossils. The Grand Canyon is a good place to begin because it is the worlds greatest geological gash. Sediment was deposited here layer upon layer and eventually...
953 wordsExplain Lovelock's "Gaia Hypothesis". Be sure to include the concept of symbiosis or mutualism. What role do human beings play in this hypothesis The Gaia Hypothesis is the theory that living organisms and inorganic material are part of a dynamic system that shape Earth's biosphere, in Lynn Margulis's words, a "super organismic system". The earth is a self-regulating environment; a single, unified, cooperating and living system - a super organism that regulates physical conditions to keep the en...
Satellite Crashes To Earth
824 wordsIn the book, The Andromeda Strain there is a problem that faces mankind. This problem is a strange virus that comes to Earth from an unmanned satellite, which was in space. This satellite crashes into a small town in Arizona, which has a population of 38 people. When this satellite crashes into the Earth, it kills everyone, except for an old man and a two-month old baby. There are two scientists who have the job of going to the crash site and gathering up the remains from the satellite. While th...
1,476 wordsAccording to the Bible, God created the first man, Adam, from the soil and the first woman, Eve, from Adams rib. These events happened in the Garden of Eden almost six thousand years ago. That is one of the many beliefs of how carbon based life forms, otherwise referred to as living organisms, came to exist on Earth. Since the beginning of mans reign on earth he has tried to explain his origins. He has used various religions and myths of being created by some higher power and he has looked towar...
Different Organic Compounds And Many Amino Acids
1,140 wordsAlexander Oparin and J.B.S. Haldane developed a theory of Biogenesis between the years of 1922 and 1928. With Oparin's "The Origin of Life" and Haldane's technical papers they created concrete hypothetical models from their knowledge of physics and biochemistry. Their only obstacle was practical proof to base their discoveries upon. Oparin speculated that Earth, in its early stages, had several different reactions occurring caused by nature. Organic compounds formed out of inorganic material tha...
Earth's First Organisms
639 wordsIn his article, The First Organisms, A.G. Cairns-Smith states to the reader about the original idea of how organisms first appeared on Earth. The idea says that before organisms roamed the Earth, various chemicals were spontaneously formed first. These chemicals served as the building blocks of the first organisms that eventually evolved into the organisms here today. Many biochemists have been testing this theory by conducting various experiments. By simulating an atmosphere that supposedly res...
Creation Of Organic Molecules To The Earth
2,504 words"We must, however, acknowledge, as it seems to me that man with all his noble qualities... still bears in his bodily frame the indelible stamp of his lowly origin". - Charles Darwin, The Descent of Man (1871). The origin of human life on Earth continues to remain a partially solved mystery that has yet to be completely understood. Historically, it was thought that an all powerful God possessed the ability to create matter at will and thus molded the universe, including Earth and all its inhabita...
Living Organisms In The Biosphere
613 wordsThe biosphere is part of the earth in which life exists. It is 20 km thick from the bottom of the ocean to the lower atmosphere. It consists of three layers: the lithosphere, which is the land on the surface of the earth; the hydrosphere, which comprises of the water on the earth as well as water vapor in the air; and the atmosphere, which is made up of the air that surrounds the earth. The living organisms in the biosphere interact and affect each other in many ways. This is called a biotic fac...
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