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The Origin Of Life On Earth

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One thought-provoking and complex question to ask is how life originated on Earth. Overtime there have been many concepts attempting to explain how life originated. Ranging from theistic creation to spontaneous generation, such as the premise that maggots were created from leaving rotting flesh outside, there have been a multitude of argued concepts. While modern science may dispel mainstream beliefs of the past, there are still many unanswered questions surrounding the origin of life. The Earth is billions of years old, yet Homo sapiens only arose roughly 195,000 years ago, leaving a plethora of questions unanswered on life’s origin and past. Nonetheless, with advances in modern science, scientists from around the world strive to answer …show more content…

Prior to the two experiments, knowledge of organic material being created from inorganic material was unheard of and unproven in the laboratory. Many at the turn of the 20th century believed autotrophs with “plant-like” metabolisms capable of harnessing carbon dioxide (CO2) in the atmosphere were some of the first early primordial beings; however, A. I. Oparin argued the origin of life was a sequential accumulation of early organic compounds into the formation of a primordial being (Bada and Lazcano, 2003, p.745). Oparin’s argument followed a Darwinian model of evolution, whereas simple organic building blocks combine and increase in complexity. The results from both experiments led Oparin and the scientific community to conclude organic compounds could be synthesized from inorganic materials, and laboratory tests could provide observable evidence for abiotic synthesis. Additionally, abiotic synthesis gained further interest after the Miller Experiment’s success. The Miller Experiment was an experiment conducted by Stanley Miller and Harold C. Urey in the 1950s showing organic compounds could form from a stimulated “mixture of reduced gases” (Bada and Lazcano, 2003, p.745). During the experiment, three apparatuses were created. One apparatus replicated water vapor mixing with “methane, ammonia, and hydrogen” to simulate a dense, water vapor-thick, early

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