The concentration of a liquid refers to how diluted or saturated the liquid is. This orange juice is so diluted it tastes like water.
        
                    
             
        
        
        
Answer:
Nucleus
Explanation:
Nucleus is the most common cell that a animal will have.
Hope this helps:)
Pls mark brainliest
 
        
                    
             
        
        
        
B. Formal operational stage of cognitive development 
 
        
                    
             
        
        
        
Answer:
kinetic energy
Explanation:
i saw this somewhere before