Q:
      
      
         
            
Plants grow in size because of 
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: A) addition of cells         
         
Explanation: Plants grow in size both in height and in grith. Enlargement  of cells already present cannot contribute much to the growth. Only addition of more and more cells could increase the size of the plant considerably.
       
      
      
      
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