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Mollusk Test

Total questions: 59

Worksheet time: 2hrs 30mins

Name
Class
Date
1.
What does Cephalopod mean?
a)
means "2-shells"
b)
means "head-foot"
c)
means "stomach-foot"
2.
Cephalopods move by
a)
using jet propulsion
b)
waving their tentacles back and forth.
c)
crawling along on a single muscular foot.
d)
clapping their shells together.
3.
What is the radula used for?
a)
Locomotion
b)
Feeding
c)
Swimming
d)
Digging
4.
All mollusks have an external shell.
a)
True
b)
False
5.
Which class of Mollusks include squid, cuttlefish and octopus?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
d)
Polyplacophora
6.

What TYPE of mollusk is this?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

7.

What TYPE of mollusk is this?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

8.

What TYPE of mollusk is this?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

9.

Which TYPE of mollusk is most intelligent?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

10.

Which TYPE of mollusk has two shells?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

11.

Which TYPE of mollusk has ONE or NO shell?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

12.
Which of the following is NOT a reason that some mollusks move slowly? 
a)
They have a heavy shell. 
b)
They have a closed circulatory system.
c)
They have an open circulatory system.
d)
Their muscular foot is not well adapted for speed. 
13.
The protective shell of a mollusk...
a)
is secreted by the mantle.
b)
Grows from the end of the mollusk foot. 
c)
Is constantly replaced by bigger shells as the mollusk grows. 
d)
forms when the mollusk reaches adulthood. 
14.
Which part of the Mollusk body is specialized for burrowing, feeding, and movement?
a)
trochophores
b)
visceral mass
c)
mantle
d)
foot
15.
What type of symmetry do MOST mollusks have?
a)
Bilateral
b)
Radial
c)
Circular
d)
Asymmetrical
16.
Which class of Mollusks include clams, oysters, and mussels?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
17.
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
18.
Which class of Mollusks include organisms that have camera-like eyes similar to humans?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
19.
Which class of Mollusks is the only class with some terrestrial species?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
20.
Which part of the Mollusk body contains organs?
a)
Foot
b)
Visceral Mass
c)
Trochophore
d)
Mantle
21.
Which class of Mollusks all have tentacles?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
22.
Which class of Mollusks have the most advanced nervous system?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
23.
Which of the following is the correct description of reproduction in Mollusks?
a)
Mostly asexual
b)
Budding
c)
Regeneration
d)
Mostly sexual
24.
Which of the following is the correct description of respiration in Mollusks?
a)
They use diffusion through their moist skin and gills in marine environments
b)
They use primitive lungs in marine environments and gills on land.
c)
They use nephridia to exchange oxygen and carbon dioxide
d)
They use gills in marine environments and primitive lungs on land.
25.
Which group of Mollusks does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
26.
What Mollusk group does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
27.
What Mollusk group does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
28.
What Mollusk group does this picture belong to?
a)
 Bivalves
b)
Gastropods
c)
Cephalopods
d)
Cnidarians
29.

# 16 Points to what feature?

a)

excurrent siphon

b)

incurrent siphon

c)

intestines

d)

mantle

30.
# 8 Points to what feature?
a)
excurrent siphon
b)
incurrent siphon
c)
gill 
d)
mantle
31.
What type of body do all Mollusks have?
a)
Segmented
b)
Soft
c)
Rigid
d)
Clear
32.
Which class of Mollusks have a closed circulatory system?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
d)
All of the classes
33.
What do the rings on the clam shell indicate?
a)
species
b)
age
c)
size
d)
genus
34.
What is the oldest part of the bivalve shell?
a)
Umbo
b)
Hinge
c)
Anterior adductor 
d)
Mantle
35.

What is the structure the arrow is pointing to?

a)

Stomach

b)

Esophagus

c)

Brain

d)

Tail

36.

What is the structure the arrow is pointing to?

a)

Chromatophore

b)

Anus

c)

Head

d)

Beak

37.

What is the structure the arrow is pointing to?

a)

Tentacles

b)

Fingers

c)

Arms

d)

Gonads

38.

What is the structure the arrow is pointing to used for?

a)

Eating

b)

Defense against predator

c)

Waste removal

d)

Eating and Waste removal

39.

What is the structure the arrow is pointing to?

a)

Mantle

b)

Fins

c)

Arms

d)

Nudimentary Gland

40.

What is the structure the arrow is pointing to?

a)

Arms

b)

Fins

c)

Tentacles

d)

Bats

41.

What is the circled structure used for?

a)

Breathing

b)

Digesting Food

c)

Releasing Ink

d)

Mating

42.

What is the structure the arrow is pointing to?

a)

Heart

b)

Gills

c)

Ink Sac

d)

Pen

43.

What is the structure the arrow is pointing to?

a)

Arms

b)

Tentacles

c)

Fins

d)

Fingers

44.

What is the structure the arrow is pointing to?

a)

Arms

b)

Tentacles

c)

Fins

d)

Fingers

45.

What is the structure the arrow is pointing to?

a)

Eye

b)

Siphon

c)

Mouth

d)

Mantle

46.

What is the structure the arrow is pointing to?

a)

Eye

b)

Siphon

c)

Mouth

d)

Mantle

47.

What is the structure the arrow is pointing to?

a)

Fins

b)

Gonads

c)

Arms

d)

Tentacles

48.

What are the dots that cover the squid in this image?

a)

Nudimentary Glands

b)

Ink Sacs

c)

Chromatophores

d)

Polkas

49.

Which of the following is the ventral side of the clam?

a)

A

b)

B

c)

C

d)

D

50.

Which of the following is the ventral side of the clam?

a)

A

b)

B

c)

C

d)

D

51.

What is the name of this location on the shell of the clam?

a)

Umbo

b)

Foot

c)

Mouth

d)

Mollusc

52.

What is the function of this structure?

a)

Making Sperm + Eggs

b)

Digestion

c)

Closing and opening clam

d)

Gas exchange (breathing)

53.

What is the function of this structure?

a)

Making Sperm + Eggs

b)

Digestion

c)

Closing and opening clam

d)

Gas exchange (breathing)

54.

What is the function of this structure?

a)

Making Sperm + Eggs

b)

Making the Shell

c)

Closing and opening clam

d)

Moving food into mouth

55.

What is the function of this structure?

a)

Making Sperm + Eggs

b)

Making the Shell

c)

Closing and opening clam

d)

Moving food into mouth

56.

Name the structure indicated.

a)

Foot

b)

Mantle

c)

Labial Palps

d)

Umbo

57.

Name the structure indicated.

a)

Visceral Mass

b)

Radula

c)

Heart

d)

Adductor Muscle

58.

Name the tube-like structure indicated.

a)

Foot

b)

Heart

c)

Intestine

d)

Hinge

59.

What type of circulatory system does the clam have?

a)

Open

b)

Closed

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