They are much like empty rooms false
the cell lacks a nucleus is true
 the rest are wrong 
        
                    
             
        
        
        
Answer:
We use them for the meat as food and the shells as decorative items 
Explanation:
hope this helps
 
        
             
        
        
        
A duplication is a mutation where the chromosome carries repetitive sets for a gene.
        
             
        
        
        
Answer:
this is not science questions it is of maths