Viruses
Viruses largely lack metabolic machinery of their own to generate energy or to synthesize

all of these
carbohydrate
alcohol
protein

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Viruses
The sequence of nucleic acid in a variety of viruses and viral host, will find more similarities

between viruses and their hosts than among different viruses
among different viral hosts than among different viruses
among different viral hosts than between viruses and their hosts
among different viruses than between viruses and their hosts

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