Micro Organisms
Which of the following may account for the small size of the cells?

All of these
The rate of diffusion
The surface area/volume ratio
The number of mRNAs that can be produced by the nucleus

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

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

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