Answer:
hereditary variat on selection is made of those genetic variats that well be passed on most effectively to the following generation
Answer: haploid, diploid) cell
Explanation:
Answer:
The virus lacks strcutures to replicate genetic material.
Explanation:
They can replicate it, but don't have structures to do it without the help of a cell. They USE the cell to replicate it but cannot do it themself.
Virus lacks genetic matrial? It has DNA.
Protective outer shell? Ptotection has nothing to do with it.
Movement? They cannot duplicate without cells.
They are like that because they can't always be faulty and may have at least some spark of truth to this theory also as stated earlier a theory in scientific terms is just an observation so it can't really be turned down hence theory.