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Constructed the first compound microscope using two lenses inside a tube.
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Observed cork with the aid of a microscope and he was the first one to use the term cells.
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He stated that maggots developed only on meat that flies had laid their eggs on. thus disproving spontaneous generation
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Described unicellular organisiations from his observations of a drop of stagnant rainwater as 'animalcules'. he discovered bacteria from his observations of saliva.
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he discovered that soup was kept sealed did not contai the microorganisms that appeared in soup open to the air.
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Observed that a large body, the nucleus, was present in both plant and animal cells.
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They formulated the cell theory, that all living matter is composed of smal units called cells.
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A german physiologist added the 3rd part to the cell theory.
He stated that where a cell exists there must have been a pre-existing cell. -
deetermined that soup spoiled when exposed to air only if the air was not filtered or if the container had an opening allowing microornagims to enter.
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