I mean the snakes would be increasing because they have more food supply. Kinda confused by the way you put this question.
        
             
        
        
        
Answer:
The correct option is C. A virus contains RNA or DNA in a protein coat. 
Explanation:
Viruses can be described as tiny particles which are able to incorporate their genetic material into a host. Many viruses can be destructive to the host cells.
The structure of a virus includes DNA or RNA which is enclosed in a structure known as an envelope or capsid. The envelope or capsid is made up of proteins. Some viruses also have a tail.
The capsid of a virus usually remains outside the host cell and it injects its viral genome into the host cell. The DNA or RNA o the virus then incorporates in the host cell.
 
        
                    
             
        
        
        
To all parts but particularly u can say phloem sap
        
             
        
        
        
Every offspring does not look alike they change with the generations