Answer:
Yes.
Explanation:
A virus is a dangerous cell. And cells are alive. The nucleus in the cell gives it it's "life" by controlling what the cell does at all times. The nucleus is like our brain or heart, you could say,
 
        
                    
             
        
        
        
Answer:
Frameshift mutations change the entire protein sequence and messes up the entire amino acid sequence that occurs after mutations, but substitution only changes one single amino acid. 
 
        
             
        
        
        
Answer: Economic
Explanation:A streak is something that characterizes somebody - an element of somebody's character that practically defines them.
So, a drinking streak refers to a person who has a drinking problem; a gambling streak refers to someone who gambles a lot; a mean streak is a bad and a mean person; and a funny streak is a humorous person.