Micro Organisms
Which were the investigators lived at the same time?

Koch and Pasteur
Van Leeuenhoek and Ricketts
Darwin and Woese
Berg and Hooke

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Micro Organisms
Genetic and biochemical similarities between contemporary cyanobacteria and eukaryotic chloroplasts are accepted to mean that

cyanobacteria arose from chloroplasts which escaped from plant cells
oxygenic photosynthesis first evolved in eukaryotes
eukaryotes evolved from bacteria
eukaryotes evolved from archaea

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