1. viruses (1 point) have large central nuclei. vary greatly in size and structure. rarely contain dna or rna. can be seen with a basic compound light microscope.

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1. viruses (1 point) have large central nuclei. vary greatly in size and structure. rarely contain dna or rna. can be seen with a basic compound light microscope.

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Viruses vary greatly in size and structure. Viruses are small particles that are neither alive nor dead. they contain RNA or DNA and a protein coat. They have different size and structure. Viruses that attack bacteria have a complex structure and size called bacteriophages.