Mollusk Test Review
1.
2.
Name the phylum in which all mollusks are classified.
State what each of the following Class names means and give examples for each Class.
a.
b.
c.
Bivalvia
Gastropoda
Cephalopoda
3- List several characteristics shared by all mollusks.
4- Which characteristics of mollusks are also found in annelids?
5. Why do cephalopods have a closed circulatory system when all other mollusks have an open
circulatory system?
6.
Clam diagram
a.
b.
c.
d.
e.
f.
g.
h.
7-
Growth rings
Orientation terms (Dorsal, Ventral, Anterior, Posterior)
lncurrent and Excurrent Siphons
Gills
Mantle
Foot
Visceral mass
Gastropods
a.
b.
c.
d.
e.
8-
Umbo
What advantage
is there to having the eyes elevated on tentacles?
Describe "torsion" and give an advantage and a disadvantage of it.
Mantle cavity acts as a modified lung in terrestrial species.
How do sea slugs protect their gills?
Garden pests
Cephatopods
a. Foot modified into tentacles
b. Beak and radula
c. Purpose of "lnk"
d. Jet propulsion - How is it done & what direction
e. How does a nautilus adjust its buoyancy?
are they moving?
9- What does it mean to say that mussels in the Mukwonago
River are "sentinel species"?
1O- Flow do some of the mussel species in the Mukwonago River increase the chances of
Slodlidiit larvae getting into a fish host in order to finish their development?
their