Which of the Following is the Best Description of a Virus

Question

Which of the following is the best description of a virus?
A) A virus is the smallest living thing.
B) A virus is a life-form that can reproduce inside cells or independently.
C) A virus is a tiny spore-producing cell.
D) A virus is a noncellular, replicating entity.

Accepted Answer

A virus is not considered a living organism as it cannot reproduce on its own and lacks metabolic processes. Instead, it is a noncellular entity that requires a host cell to replicate itself.