EVERYDAY SCIENCE

Detailed explanation-1: -Viruses are non-cellular organisms, but replicate themselves once they infect the host cell.

Detailed explanation-2: -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.

Detailed explanation-3: -A virus is a microscopic organism that can replicate only inside the cells of a host organism. Most viruses are so tiny they are only observable with at least a conventional optical microscope. Viruses infect all types of organisms, including animals and plants, as well as bacteria and archaea.

Detailed explanation-4: -Virus is a submicroscopic infectious agent that reproduce inside a living cells of a organism. They are not placed in domains of live since they do not have an independent self outside a living cell. So virus does not belong to any kingdom.

Detailed explanation-5: -Therefore, viruses did not find any position in the five-kingdom classification. Thus, the answer is option D: None of the above.