Answer:
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism.
Explanation:
Water is less dense as a solid than as a liquid. Normally this is reversed. Water has its maximum density at 4 degrees Celcius.
The fact that ice is less dense than water allows it to float on top of ponds so fish, frogs, etc can survive winters.
Less diversity is created
A lot of them because cancer is like constant mitosis