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Mollusca Phylum Review

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

Mollusca means ....

a)

Slimy

b)

Shelled

c)

Snail

d)

Moldy

2.

Most mollusks have what type of symmetry?

a)

Radial

b)

Bilateral

c)

Asymmetry

d)

No symmetry

3.

Mollusks are the first phylum that have all of the following well-developed systems except?

a)

Digestive

b)

Excretory

c)

Circulatory

d)

Nervous

4.

Most Mollusks use what structure to eat?

a)

Radula

b)

Mantle

c)

Tongue

d)

Suckers

5.

Gastropod means what?

a)

Slimy foot

b)

Stomach foot

c)

Snail

d)

Head foot

6.

Cephalopod means what?

a)

Slimy foot

b)

Stomach foot

c)

Head foot

d)

Squid

7.

Bivalvia class includes what type of animals?

a)

Clams

b)

Squid

c)

Chiton

d)

Octopi

8.

Where do Bivalves live?

a)

Marine water

b)

Fresh water

c)

Brackish water

d)

All of the above

9.

Which cephalopods have an external shell?

a)

Squids

b)

Snails

c)

Nautiloids

d)

Chiton

10.

Which class of mollusks is the only one that can be found on land?

a)

Bivalves

b)

Polyphacophora

c)

Cephalopods

d)

Gastropods

11.

What specific feature is only found on cephalopods?

a)

Gills

b)

Tentacles

c)

Siphon

d)

Head

12.

Which feature is not found in all mollusks?

a)

Mantle

b)

Visceral mass

c)

Radula

d)

Head foot

13.

In which environment are most mollusks found?

a)

Marine water

b)

Fresh water

c)

Land

d)

Rainforest

14.
Octopuses can change colors to match their environment. 
a)
True
b)
False
15.
Which of these is an example of a gastropod?
a)
snail
b)
clam
c)
earthworm
d)
octopus
16.
All gastropods have shells
a)
true
b)
false
17.
Which group of Molluscs does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
18.
Most mollusks breathe via...
a)
Gills
b)
Lungs
c)
Their moist skin
d)
Their nervous system
19.
Identify the purpose of the mantle found in a mussel.
a)
Circulation
b)
Movement
c)
Makes the shell
d)
Gas exchange
20.
Which part of the Mollusk body is specialized for burrowing, feeding, and movement?
a)
trochophores
b)
visceral mass
c)
mantle
d)
foot