Which statement compares bacteria and viruses?

Which statement compares bacteria and viruses?

• A. Bacteria cannot be compared to viruses.
• B. Bacteria are living, single-celled organisms with cells; viruses are non-living particles that require a host to reproduce.
• C. Viruses have cellular respiration; bacteria do not.
• D. Bacteria reproduce only inside hosts.

Answer: (B)

Understanding living versus non-living entities helps explain this comparison. Bacteria are living, single-celled organisms with their own cellular machinery, able to carry out metabolism and reproduce on their own under suitable conditions. Viruses, in contrast, are non-living particles that lack cells and metabolic processes; they cannot reproduce without infecting a host cell and using that cell’s machinery. That fundamental difference is what makes the statement accurate: bacteria are living and cellular, while viruses are non-living and dependent on a host to reproduce. The idea that they can’t be compared is misleading, viruses do not perform cellular respiration or metabolism on their own, and bacteria can reproduce outside a host, so they aren’t limited to reproduction only inside hosts.

Understanding living versus non-living entities helps explain this comparison. Bacteria are living, single-celled organisms with their own cellular machinery, able to carry out metabolism and reproduce on their own under suitable conditions. Viruses, in contrast, are non-living particles that lack cells and metabolic processes; they cannot reproduce without infecting a host cell and using that cell’s machinery. That fundamental difference is what makes the statement accurate: bacteria are living and cellular, while viruses are non-living and dependent on a host to reproduce. The idea that they can’t be compared is misleading, viruses do not perform cellular respiration or metabolism on their own, and bacteria can reproduce outside a host, so they aren’t limited to reproduction only inside hosts.