Q:
      
      
         
            
Which statement regarding the mammalian heart is correct?
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: D) In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs.         
         
Explanation: In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs is correct regarding mammalian heart.
       
      
      
      
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