Bacteria different from viruses D. Bacteria can exist outside a host.
the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.
What are 3 differences between viruses and bacteria?
Viruses are tinier: the largest of them are smaller than the smallest bacteria. All they have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can't survive without a host. They can only reproduce by attaching themselves to cells.
What is worse virus or bacteria?
For more information, visit our medical review board. Most bacteria aren't harmful to humans, but most viruses are potentially harmful. Bacteria are living organisms, while viruses are parasitic and need a live host to reproduce
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