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Phylum Mollusca Review

Total questions: 34

Worksheet time: 32mins

Name
Class
Date
1.
What is the radula used for?
a)
Locomotion
b)
Feeding
c)
Swimming
d)
Digging
2.
The protective membrane that surrounds the visceral mass on all mollusks is called...
a)
Radula
b)
Mantle
c)
Nephridia
d)
Visceral Shield 
3.

What TYPE of mollusk is this?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

4.

What TYPE of mollusk is this?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

5.

What TYPE of mollusk is this?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

6.

What TYPE of mollusk is this?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

7.

Which TYPE of mollusk is most intelligent?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

8.

Which TYPE of mollusk has two shells?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

9.

Which TYPE of mollusk can have ONE shell or NO shell?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

10.
What does Cephalopod mean?
a)
means "2-shells"
b)
means "head-foot"
c)
means "stomach-foot"
11.
Which class of Mollusks include squid, cuttlefish and octopus?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
d)
Polyplacophora
12.
Which part of the Mollusk body is specialized for burrowing, feeding, and movement?
a)
trochophores
b)
visceral mass
c)
mantle
d)
foot
13.

Which is TRUE about ALL mollusks?

a)

have segmented bodies

b)

lack a digestive system

c)

have soft body

d)

have outer shells

14.

What is contained in the visceral mass? (select all correct answers)

a)

arms

b)

circulatory system

c)

nervous system

d)

head/foot

15.

Chitons have

a)

8 arms

b)

2 tentacles

c)

8 shells

d)

8 brains

16.

What is a function of the radula?

a)

contains body systems

b)

protection

c)

filter feeding

d)

scraping for food

17.

Which of the following are in the Gastropoda class?

a)

Nudibranch

b)

Snails

c)

Squid

d)

Mussels

18.

What is the opening of the gastropod shell protected by?

a)

cerata

b)

operculum

c)

mantle

d)

visceral mass

19.

Mollusks with 2 joined valves or shells are

a)

cephalopods

b)

bivalves

c)

polyplacophora

d)

gastropods

20.

What is the function of chromatophores?

a)

balance

b)

jet-propulsion

c)

buoyancy

d)

color change

21.

Select the parts of the molluscan body.

a)

head

b)

visceral mass

c)

polyp

d)

mantle

22.

What are siphons used for?

a)

gas exchange

b)

defense

c)

jet propulsion

d)

feeding

23.

Most mollusks have what type of symmetry?

a)

Radial

b)

Bilateral

c)

Asymmetry

d)

No symmetry

24.

Gastropod means what?

a)

Slimy foot

b)

Stomach foot

c)

Snail

d)

Head foot

25.

What specific feature is only found on cephalopods?

a)

Gills

b)

Tentacles

c)

Siphon

d)

Head

26.
Octopuses can change colors to match their environment. 
a)
True
b)
False
27.
Identify the purpose of the mantle found in a mussel.
a)
Circulation
b)
Movement
c)
Makes the shell
d)
Gas exchange
28.
The pigment cells in many cephalopods that help with camouflage are called
a)
odontophores
b)
chromatophores
c)
pinacocytes
d)
melanocytes
29.
Which class includes the chitons?
a)
Gastropoda
b)
Polyplacophora
c)
Monoplacophora
d)
Scaphopoda
30.

This organism uses its foot to attach to rocks in intertidal regions

a)

nudibranch

b)

chiton

c)

cuddle fish

d)

radula

31.

Which of the following organisms belong to the class Cephalopoda? (select all correct answers)

a)

clam

b)

nautilus

c)

cuttlefish

d)

sea snails

32.

The prismatic, periostracum and narceous are all .. .

a)

layers of a mollusk shell

b)

types of gastropods

c)

structures within tentacles

d)

structures within arms

33.

The valves of bivalves are held closed using

a)

siphons

b)

visceral mass

c)

mantle

d)

adductors

34.

Which of these are always "grazers?"

a)

cephalopods

b)

bivalves

c)

nudibranch

d)

gastropods

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