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Comparing Mollusks Chart

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

 

Characteristic

Type of Mollusk

Gastropods

Bivalves

Cephalopods

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

     

Types of Mollusks Wordsearch

octopuswordsearch

OCTOPUS | CLAM | SLUG | SQUID | OYSTER
NAUTILUS | NUDIBRANCH | SCALLOP
CUTTLEFISH | LIMPET | CHITON