Mollusks Chapter 30 Name ____________________

Using what you know about the three major classes of mollusks, complete the chart below by checking the correct column or columns for each characteristic.



Type of Mollusk




1. Intelligent, well developed nervous system


2. Has no distinct head


3. Has an open circulatory system


4. External shells present in some species


5. Bite prey with beak


6. Uses gills for both respiration and food collection


7. All species are carnivorous predators


8. Uses a radula for feeding


9. Can change color for camoflauge


10. Can form pearls


11. Use a type of jet propulsion for movement


12. Has bilateral symmetry


13. Has a two part hinged shell


14. Is an invertebrate


15. Some species are venomous