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

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

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Micro Organisms
Archeal cells usually do not contain peptidoglycan, rather contain pseudo-peptidoglycan which is mainly composed of

N-acetyltalosaminuronic acid and L-amino acids
N-acetyltalosaminuronic acid and D-amino acids
N-acetylmuramic acid and L-amino acids
N-acetylmuramic acid and D-amino acids

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Micro Organisms
Eukaryotic cell organelles first emerged

just before the origin of the animal and fungal kingdoms
when bacteria made their first attempts at reproduction
when prokaryotes engulfed each other and became interdependent
from a specialized lineage of cells within the kingdom Protista

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