The Water Deer (Hydropotes inermis) is a usually solitary animal, besides the rutting months, and a good swimmer. There exist two subspecies: the Chinese Water Deer (Hydropotes inermis inermis) and the Korean Water Deer (Hydropotes inermis argyropus).
Viruses lack most of the internal structure and machinery which characterize 'life', including the biosynthetic machinery that is necessary for reproduction. In order for a virus to replicate it must infect a suitable host cell.
Viruses codetheir genes on a single type of nucleic acid, either DNA orRNA, but viruses lack ribosomes and the enzymes neces-sary for protein synthesis. Viruses are able to reproduce be-cause their genes are translated into proteins by the cellâsgenetic machinery.