Mollusks
Vocabulary
Bivalves & Gastropods
Clam Body Parts
Clam Body Parts
100

The three classes of mollusks learned about 

Bivalve, gastropods, cephalopods

100

A rough tongue-like structure lined with “teeth,” used for feeding 

Radula 

100

Class of mollusk which means “stomach-foot” 

Gastropod 

100

1 points to  

Intestine  

100

6 points to 


Mouth

200

Mollusk class that does not have a radula 

Bivalves  

200

Pigment filled cells located in the outer layer of the mantle of some mollusks that allow the animal to change color  

Chromatophores  

200

Structure which enables a bivalve to filter feed  

Siphons

200

2 points 


Mantle

200

4 points 


Gills

300

Name the kingdom, phylum and class of a clam 

Animalia, Mollusca, bivalve 

300

Term which means ‘non-moving” 

Sessile

300

Structure which enables bivalves to open and close their shell 

Adductor muscles

300

5 points to 


Hinge

300

2 and 5 points to 


Foot

400

Name four characteristics of mollusks 

soft-bodies, bilateral symmetry, invertebrates, mantel, visceral mass, internal or external shell (some), radula (not bivalves)

400

Region in a clam’s body that contains the internal organs  

Visceral mass

400

Oldest part of a shell in a bivalve 

Umbo

400

10 points to 


Gills  

400

1 points to


Operculum

500

Structure which secretes the shell in most mollusks 

Mantle

500

Structure which enable an oyster and muscle to attach to its substrate 

Byssal Threads

500

Structure which seals the opening to a gastropod shell 

Operculum

500

6 points to 


Heart

500

9 points to 


Mantle cavity