Your question does not give enough information. What are "which"? Should there be more to the question?
Multiply. A virus needs energy to multiply.
generally bacteria and viruses multiply rapidly in colder environments rather than hot conditions.so,cold virus need hot
A basic characteristic of a virus is that it cannot survive or reproduce on its own. It requires a host cell to replicate and multiply.
No, a virus cannot catch a virus and become ill. A virus is a shell of protein containing DNA. A virus works by getting into a cell and "reprogramming it" to multiply and start to take of the organism. A virus cannot infect another virus because viruses are not cells themselves.
virus
multiply
To insert into a healthy cell so that it can multiply.
You need a virus killer.
Yes..... You need an ANTI-VIRUS to do it.
Viruses can only multiply (reproduce) within a host cell. The type of host cell is dependent on the virus' host range.
A virus does not need a crystal to reproduce, as they are not living organisms and do not have cellular machinery to perform reproduction. However, a virus does need a host cell to replicate and produce new virus particles.
Reverse transcriptase. Runs off a DNA strand(s) from the virus RNA template.