Why have viruses not been classified in any of the five kingdoms?

Answer 1

According to the answer from my textbook, it is because "When outside a living host cell, the virus exists as a crystal and is not considered a living thing because it does not carry out any life processes."

Answer 2

Viruses are not included in any of the kingdoms of organisms because they are generally not thought of as truly alive. Unlike living things, viruses do not have cells (they are much smaller) and are basically just DNA (or sometimes RNA) wrapped in protein. Thya slo do not carry out any metabolic processes (like eating) and although they reproduce, they cannot do so by themselves, and need to "hijack" a living cell from an organism.

Answer 3

Viruses are not considered to be living organisms because they lack many characteristics of life such as the ability to metabolize or reproduce on their own. They also do not fit into the traditional classification system based on cellular organization used for living organisms. Instead, viruses are typically classified separately as submicroscopic infectious agents.

Answer 4

Viruses are not alive so they can not be placed in any kingdom.

Answer 5

it cant reproduce without a host cell therefore it doesn't fit the criteria of a life form and cannot belong to a biological kingdom.

Answer 6

because viruses are not alive they have to have a host to reproduce

Answer 7

Because they are just DNA.