Individual #Lorenz_Oken__Oken__Okenfuss__Lorenz_Okenfuss  German naturalist whose speculations that plants and animals are made up of tiny living `infusoria' led to the cell theory (1779-1851)
  type:  #naturalist__natural_scientist__naturalscientist  a biologist knowledgeable about natural history (especially botany and zoology)

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