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Mollusk

Total questions: 26

Worksheet time: 13mins

Name
Class
Date
1.
In what type of environment do MOST mollusks live?
a)
Soil
b)
Freshwater
c)
Marine
d)
Terrestrial
2.
Which part of the Mollusk body is specialized for burrowing, feeding, and movement?
a)
trochophores
b)
visceral mass
c)
mantle
d)
foot
3.
What type of symmetry do MOST mollusks have?
a)
Bilateral
b)
Radial
c)
Circular
d)
Asymmetrical
4.
Which class of Mollusks include clams, oysters, and mussels?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
5.
Which part of the Mollusk body is the tissue covering the body and secretes the shell?
a)
Mantle
b)
Trochophore
c)
Foot
d)
Visceral Mass
6.
Which class of Mollusks include organisms that have camera-like eyes similar to humans?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
7.
Which class of Mollusks is the only class with some terrestrial species?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
8.
Which class of Mollusks all have tentacles?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
9.
Which class of Mollusks have the most advanced nervous system?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
10.
Which group of Mollusks does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
11.
What Mollusk group does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
12.
What Mollusk group does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
13.
What Mollusk group does this picture belong to?
a)
 Bivalves
b)
Gastropods
c)
Cephalopods
d)
Cnidarians
14.

# 4 Points to what feature?

a)

excurrent siphon

b)

incurrent siphon

c)

intestines

d)

foot

15.
# 8 Points to what feature?
a)
excurrent siphon
b)
incurrent siphon
c)
gill 
d)
mantle
16.
These animals do not have backbones
a)
vertebrates
b)
invertebrates
c)
exoskeleton
d)
pores
17.
Soft bodied invertebrate with a thick muscular foot for movement: some have shells
a)
molluks
b)
arthropod
c)
segmented worm
d)
sponge
18.
clams, squids, and octopuses
a)
Sponges
b)
Echnioderms
c)
Mollusks
d)
Segmented Worms
19.

SELECT ALL that belong to Phylum Mollusca

a)

Gastropods

b)

Cephalopods

c)

Cnidaria

d)

Bivalves

20.

________ are structures covered in teeth that some mollusk use during feeding.

a)

mantle

b)

radula

c)

foot

d)

gills

21.

Sea slugs, known as ___________, have no shells

a)

Bivalves

b)

Cephalopods

c)

Nudibranchs

d)

Snails

22.

Clams use __________ to take in and expel water.

a)

radula

b)

foot

c)

siphon

d)

gills

23.

Cephalopods move via ________. (select all)

a)

jet propulsion

b)

flexing tails fins

c)

walking

d)

currents carrying them

24.

Cephalopods grab prey using their __________.

a)

legs

b)

tentacles

c)

foot

d)

siphon

25.

____________ help cephalopods change color to hide from prey or communicate with potential mates

a)

gills

b)

tentacles

c)

chromatophores

d)

skin cells

26.

Squid have embedded shells known as _______.

a)

bivalves

b)

radula

c)

beaks

d)

pens

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