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 are even simpler than bacteria cells. The basic of structure of all viruses is similar. Viruses have a core of nucleic acid surrounded by a protein coat. At their core, all viruses contain either DNA or RNA.Unlike animal and plant cells, viruses do not contain both nucleic acid. The Capsid is the DNA or RNA core of a virus that is surrounded by a protein coat.The capsid protects the nucleic acid. Besides a Capsid, some viruses, especially animal viruses, are covered with another protective coating called an Envelope.iruses are even simpler than bacteria cells. The basic of structure of all viruses is similar. Viruses have a core of nucleic acid surrounded by a protein coat. At their core, all viruses contain either DNA or RNA.