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Aristotle articulated principles of generation to account for the theory that developing organisms go through a series of stages before acquiring their final form, a theory later called epigenesis
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This changed the way of life. Living bacteria, organisms, and illnesses were seen in or on our water, food, and everyday items. This also created a new debate across the world.
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Jean studied some theories of the German-Swiss physician, Paracelsus. He came to understand photosynthesis
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After looking at cork under a microscope he had discovered what plant cells look like.
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Anton van Leeuwenhoek observed an abundant number of single-celled organisms, which he called animalcules (plant & animal), swimming in a drop of pond water!Oct 12, 2015
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Came up with the statement, "All living organisms originate from and consist of cells" This could have been the first statement of a cell theory.
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He discovered that the nucleus and its role helped to put together the cell theory, which states that all living organisms are composed of cells, and cells come from pre-existing cells.
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Later, Theodor moved on to publish his monograph of Microscopic Researches into Accordance, showing the growth of plants and animals.
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Matthias Schleiden and his friend came up with the cell theory together
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Rudolf Virchow was one of the first men to accept the work of Robert Remak, who showed that the origin of cells was the division of pre-existing cells. Virchow's cellular theory was encapsulated in the epigram Omnis cellula.
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He disapproved spontaneous generation and figured out how to preserve food and keep people from getting sick.
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Jean discovered that mass of the entire plant was far more than the weight of the displaced original pounds of soil. He discovered the major photosynthesis equation, 6CO2 + 12H2O + light energy ----> C6H12O6 + 6O2 + 6H2O.