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Biochemistry originated from the gradual merging of biology and chemistry during the nineteenth century, when scientists began to investigate the chemical composition and processes of living organisms. Earlier, life was explained through vitalism, the belief that living beings possessed a special “vital force” distinct from non-living matter. This view was challenged in 1828 when Friedrich Wöhler synthesized urea, an organic compound, from inorganic substances. His experiment demonstrated that organic molecules could ________ ________ ______ _______ _________ __________ ___ _________ ____ ____.
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