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Creado por Alice Hathaway
hace más de 8 años
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What was the theory on micro-organisms before the germ theory?
What did this mean?
Who came up with The Germ Theory?
When did he prove it?
What did he do first?
What was special about the swan neck flask?
What did he find?
What did he do next?
What did he find?
What did this prove?
What happened next?