- 1. What is the hard outer covering of a clam called?
A) Shell
B) Chiton
C) Carapace
D) Exoskeleton
- 2. How many shells does a clam have?
A) Four
B) Two
C) One
D) Three
- 3. What body part of a clam is used to dig and move in the sand?
A) Tentacle
B) Foot
C) Siphon
D) Gill
- 4. Which of the following is not a color that clams can be?
A) Brown
B) Purple
C) Blue
D) White
- 5. What is the scientific class of clams?
A) Cephalopoda
B) Mollusca
C) Gastropoda
D) Bivalvia
- 6. What do clams filter from the water to feed?
A) Plankton
B) Fish
C) Algae
D) Sand
- 7. What is the largest clam species in the world?
A) Quahog
B) Razor clam
C) Giant clam
D) Geoduck
- 8. What do clams use to create new shell material and repair damage?
A) Calcium carbonate
B) Keratin
C) Chitin
D) Silica
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