What Viruses and Bacteria Have in Common?

Although viruses and bacteria are different, they do share several similarities. Some characteristics common both in viruses and bacteria are explained below:

:___ Both viruses and bacteria are very tiny and are not seen by naked eyes. Both are found in different forms and can be observed under a microscope.
:____ Viruses and bacteria can infect a host organism (plant, animal, human or a bacterium) and may cause illness.
:___ Bacteria and viruses contain a genome.

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In summary, viruses and bacteria both have the ability to infect organisms and contain genetic material.