Cell nucleus chromosome gene nucleotide base subunit atom
        
             
        
        
        
think its the second one,have a nice day
 
        
             
        
        
        
Multidisciplinarity draws on knowledge from different disciplines but stays within their boundaries. Interdisciplinarity analyzes, synthesizes and harmonizes links between disciplines into a coordinated and coherent whole. 
 
        
             
        
        
        
Answer:
7
Explanation:
water is neutral 7 is neutral ph
 
        
                    
             
        
        
        
Answer:
D and E
Explanation:
The others are physical methods and can be separated again.
Hope this helps :)