The question is what does it regulate. PLEASE HELP. 1 sentence for each will help        
      
                
     
    
    
    
    2  answers:
            
              
The pituitary gland secretes hormones, which can stimulate growth.
                                
             
                    
              
<span>a regulate is to control or direct by a rule, principle, or method.</span>
                                
             
         	
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Answer: 
 (1) the surface area of the solute, 
(2) the temperature of the solvent, 
(3) the amount of agitation that occurs when the solute and the solvent are mixed.
Explanation: 
 
        
                    
             
        
        
        
The law of conservation of mass<span> states that </span>mass<span> in an isolated system is neither created nor destroyed by chemical reactions or physical transformations.
        
             
        
        
        
Answer: 
DNA
Explanation: Because if you stretch DNA it gets longer.  
 
        
                    
             
        
        
        
<span>Calcitriol </span>is the active form of vitamin D. (D)
        
                    
             
        
        
        
Answer: 
Do your project by yourself