Answer:
Coronavirus in its own doesn't have an advantage.
I believe that it helps us to prevent other epidemic diseases such as cholera and other diseases that are caused by lack of sanitization.
Since washing hands frequently is the way of preventing coronavirus.
And wearing mask also helps us to prevent other respiratory diseases being transmitted.
The sisters are different heights because one or both of the parents has a short allele that wasnt dominated by the tall allele, or vice-versa.
