Mollusc Questions

Mollusca Practice Questions

 

1.     True / False – The nautilus is the only cephalopod with a shell.

2.    True / False – Some freshwater clams have a special veliger stage called glochidium.

3.    What are the larval stage(s) of Class Gastropoda? CATA

a.    Trocophore

b.    Planula

c.    Veliger

4.    The chambers in a nautilus shell are divided by ________ and connected by a cord of living tissue called _________.

5.    What are the layers of the bivalvia shell from outermost to innermost?

a.    ______________

b.    ______________

c.    ______________

6.    What Gastropod can eat sponges?

a.    Oysters

b.    Snails

c.    Nudibranchs

d.    Octopus

7.    Which of the following belong to Class Polyplacophora

a.    Chiton

b.    Neophilina

c.    Feather duster

d.    Slug

8.    Name the cell type which effects color change in cephalopod bodies. ___________

9.    What part of the body closes off the shell to avoid predation in gastropods?

a.    Whirl

b.    Operculum

c.    Aperature

d.    Umbo

10.  What 2 crystaline structures in the stomach crush food particles allowing for digestion? CATA

a.    Sorting area

b.    Rotating mucous cord

c.    Gastric shield

d.    Rotating crystalline style

11.   True / False – Polyplacophorans use a radula in feeding

12.  What term explains the twisting of the body in the shell?

a.    Twisting

b.    Coiling

c.    Torsion

d.    None of the above

13.  Name two of the three modifications to the foot in cephalopods.

a.    ______________

b.    ______________

c.    ______________

14.  True / False – Some bivalves burrow into stone.

15.  How many plates do members of polyplacophora have?

a.    1-2

b.    10-15

c.    7-8

d.    4-5

16.  True / False – Polyplacophorans have both a trocophore and a veliger’s larval stage?