C. The nucleus does not exit within a prokaryotic cell
Most bacteria are heterotrophic decomposers, which means they depend on other organisms for food and feed on dead matter.
A virus is a microscopic parasite that infects cells in biological organisms, they reproduce only by invading and controlling other cells as they lack the cellular machinery for self reproduction. Additionally, viruses contain at least one unique protein synthesized by specific genes in the nucleic acid, the proteins forms a shell called capsid around the nuclei acid.
