Out of the three, only 1 is acidic because litmus paper turns red in acidic compounds and blue in basic compounds.
        
             
        
        
        
Answer:  [B]:  "proteins" .
_________________________________
        
             
        
        
        
Answer:
Plant cells have cell walls an are shaped more rectangular 
Animal cells have circular shapes
Explanation:
You guys can add on I think I forgot some information
 
        
                    
             
        
        
        
The nucleus contains the protons and neutrons giving it the most mass
        
                    
             
        
        
        
1. During inhalation the diaphragm contracts or moves down, what happen to the chest
cavity?
a. Expand