Viruses are small obligate intracellular parasites, which by definition contain either a RNA or DNA genome surrounded by a protective, virus-coded protein coat. Viruses may be viewed as mobile genetic elements, most probably of cellular origin and characterized by a long co-evolution of virus and host.Pengwin » 05 Sep 2021, 4:18 pm » wrote: ↑ What is a parasite?
What is a bacteria?
And what is a virus?