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He discovered how embryos develop and that they are made up of undifferentiated material. This refutes cell theory because it shows that an embryo is not made out of nothing
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He made the microscope and this helps reject spontaneous generation because it helped other scientists reject it. 1590s
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He figured out that plants do not get their food from soil. This does not refute spontaneous generation because it is talking about where plants get their food from. 1600s
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He looked at a cork under a microscope and saw something that looked like cellula, and he named them cells. This refutes spontaneous generation because it shows that things are made out of cells and this is apart of the cell theory. 1600s
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From the dental scrapings off of his teeth he discovered these things that looked like little animals, so he called them Animacules. These animacules he saw were actually bacteria. This refutes spontaneous generation because it shows that bacteria forms when it is on a surface that is dirty. 1600s
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He found out binary fission which is the means by which bacteria reproduce. He found out that cells are made by cells. This refutes spontaneous generation because it shows that cells are not made out of thin air and that they are made up of cells. Late 1800s
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He discovered what a nucleus is and helped confirm that all living organisms are composed of cells and cells come from pre-existing cells. This refutes spontaneous generation because it shows where cells are coming from. Early 1800s
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He discovered that all living things originate and consist of cells. This refutes spontaneous generation because it shows that organisms are made out of something.
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He found out that every plant is made up of cells. This rejects spontaneous generation because it shows that plants are made up of cells. 1830s
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He noticed that every animal has the same structure that was these cells. This refutes spontaneous generation because it shows that animals are made up of cells. 1830s
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He discovered that sperm and egg are also cells. This denies spontaneous generation because it shows that sperm and eggs are cells and sperm and egg make people so it shows that people can be traced all the way down to cells.
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He did the Swan-Neck bottle experiment in which you fill a swan-neck flask with broth and boil it to sterilize it and found out that if the broth is not exposed to the air there will be no growth of bacteria. This refutes spontaneous generation because it shows that bacteria needs forms when there is something for it to form onto/