Isotonic solution nothing happens to the cell it exists as it is.....in a hypotonic solution the cell will shrivel up and in hypertonic solution it will swell to the point of rupturing (aka cytolyse)
        
             
        
        
        
Answer:
 B- Centrosome
Explanation:
I think this is right but not 100% sure. So sorry if its wrong 
 
        
                    
             
        
        
        
What on earth, please repeat the question clearer
        
             
        
        
        
Your answer is D. Nucleotide