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Phylum Mollusca

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

This animal belongs to

a)

Gastropoda

b)

Cephalopoda

c)

Bivalvia

2.

This animal belongs to

a)

Bivalvia

b)

Cephalopoda

c)

Gastropoda

3.

This animal belongs to

a)

Bivalvia

b)

Gastropoda

c)

Cephalopoda

4.

Which stucture makes the shell?

a)

Mantle

b)

Visceral mass

c)

Inhalant siphon

d)

Gills

5.

Which structure in a mussel aids in filter feeding?

a)

Gills

b)

Heart

c)

Foot

d)

Visceral mass

6.

Tentacles are modified versions of the

a)

Foot

b)

Visceral mass

c)

Head

d)

Mantle

7.

The oldest part of a mussel's shell

a)

Umbo

b)

Hinge

c)

Outer edge

d)

Mantle margin

8.

The word Mollusca means

a)

Soft body

b)

Many forms

c)

Stinging cells

d)

Porous skin

9.

Which organism would have a beak to help it break shells and bones?

a)

Cuttlefish

b)

Slug

c)

Clam

d)

Oyster

10.

Which organism would have a radula?

a)

Snail

b)

Octopus

c)

Clam

d)

Oyster

11.

Which of the following would contain the vital organs of a mollusk?

a)

Visceral mass

b)

Mantle

c)

Head

d)

Foot

12.

What structure aids in locomotion?

a)

Foot

b)

Mantle

c)

Visceral mass

d)

Shell

13.

Which organisms use camouflage to hypnotize and capture prey?

a)

Cuttlefish

b)

Nautilus

c)

Leopard slugs

d)

Zebra mussels

14.

What substance are pearls made of?

a)

Nacre

b)

Calcium

c)

Sodium

d)

Silicate

15.

A squid's ink sac is a part of what body region?

a)

Visceral mass

b)

Mantle

c)

Head

d)

Foot

16.

Identify the function of the sturcture labeled A

a)

Pull water in and out

b)

Secrete a layer of mucus to aid in digestion

c)

Locomotion

d)

Open and close the shell

17.

Identify the function of the structure labeled D.

a)

Open and close the shell

b)

Pull water in and out

c)

Locomotion

d)

Secretes mucus to aid in digestion

18.

Identify the structure labeled B.

a)

Labial palps

b)

Adductor muscle

c)

Siphon

d)

Foot

19.

Identify the structure labeled C.

a)

Foot

b)

Labial palps

c)

Siphons

d)

Adductor muscle

20.

What are the functions of a mussels gills?

a)

Respiration and filter feeding

b)

Locomotion

c)

Reproduction

d)

Digestion