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constructed first compounded microscope
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observed cork and described it as a honeycomb with many little boxes or cells
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performed an experiment to determine if flies came from rotting meat but discovered that flies laid eggs in the rotting meat for them to appear.
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discovered bacteria from observatuons of his saliva.
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He determined that soup in a sealed container was sterile and that micro organisms that caused the soup to spoil had entered from the air.
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Observed the nucleus in a large body was present in both plant and animal cells.
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found that all living matter is composed of small units called cells.
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Also found that all matter is composed of cells.
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Stated that where a cell exists, there must of been a pre-existing cell.
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Experimented that determined that soup exposed to air only spoiled if the air was not filtered or if the flask containing the soup had an opening that allowed micro organisms to get to the soup.