Strictly speaking, a virus adds its code to other executables to infect them (and thus spread), such that the virus code runs when the infected program(s) are run. Often, the term "virus" is used in a less formal context to mean any kind of malware, including viruses themselves as well as worms, trojans, etc.
Viruses has a charateristics of being alive but they are NOT since they are single-cell organisms.
How do you say Charateristics?
peaceful
face
bacteria
no tail
this is a good site
A vertebrate has a spine.
it has no characteristics of any kind
one characteristic is that they have broad leaves
sifat means charateristics
there young