Mollusks

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Across
  1. 3. muscles used to keep shell tightly closed on bilaves
  2. 5. sensory organs
  3. 6. organ that holds ink used for protection
  4. 9. mass where all the organs are held
  5. 10. a hard covering used for protection
Down
  1. 1. large sack like space
  2. 2. used to tear apart prey
  3. 4. long appendages used for catching prey
  4. 7. large tube used to expell water at a high speed
  5. 8. layer of tissue that covers the visceral mass