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Which of the following is true about viruses?
Viruses are considered non-living organisms because they have no organelles or other cellular machinery, they cannot reproduce without a host cell, and they have no metabolic activity.
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Viruses can do which of the following?
All viruses can and must carry either DNA or RNA (but not both). However, viruses cannot reproduce on their own, and must infect a host cell in order to manufacture more copies of itself. They cannot respond to outside stimulus as they do not have any functional parts, such as mitochondria, ribosomes, or a nucleus. For the same reason, viruses also cannot produce proteins or metabolize chemical compounds.
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