Viruses resemble living things because they: _____________?
Correct answer: C. Reproduce
- A. Circulate
- B. Move
- C. Reproduce
- D. Are crystalline
Explanation
Viruses resemble living organisms because they can reproduce inside a suitable host cell using the host's machinery. They are not independently cellular and cannot reproduce on their own outside a host. Students may choose crystallization because viruses can form crystals, but crystallization is a non-living characteristic rather than evidence of life.
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About Viruses
Viruses are acellular infectious particles made of genetic material enclosed by a protein capsid, sometimes with a lipid envelope. Their replication depends on a host cell and may follow lytic or lysogenic cycles, so viral structure and reproduction differ fundamentally from those of cellular organisms such as bacteria.
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