MOLLUCS

MOLLUCS

1. CHARACTERISTICS

   • they are
     • invertebrates with bilateral symmetry
   • body parts
     • head
     • visceral mass
     • muscular foot
     • breathe
       • aquatic: gills
       • terrestrials lungs
     • nervous system

2. CLASSFICATION

   • bivalves
     • characteristics
       • shell: two valves
       • breath: gills
   • gastropods
     • shell coil
     • breath
       • terrestrial: lung
       • aquatic: gills
   • cephalopods
     • don´t have shell
     • two well-developed eyes and tentacles
     • gills, hunters and a beak