Answer:
A scientist might also want to know if there is water, a sustainable atmosphere, or the temperature on the planet. If any of these features are different, then life may not be sustainable.
There is no possible explanation as this is practically definition.
The virus goes inside the cells nucleus and corrupt everything apart of it. The RNA in the virus gets forcefully put in the DNA lining so the virus can replicate millions of times. As that's happening, the nucleus takes action and replicates the virus then breaks down. Destroying the cell, the virus move on to its next cell.
