 
       
      
    The respiratory system present in Arthropoda is/are
Book gills
Book lungs
Tracheal system
All of these
 
                
                  
Physiology of Arthropoda -
Respiration in Arthropoda:
 Aquatic arthropods breathe through book gills.
Aquatic arthropods breathe through book gills. 

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The terrestrial arthropods breathe through network of tracheal tubes connected to the outside via spiracles. Other arthropods use books lungs for respiration. Aquatic arthropods breathe through book gills.
 
                