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WorksheetsMollusca - Zoology
Total questions: 24
Worksheet time: 12mins
Name
Class
Date
1.
Octopuses can change colors to match their environment.
a)
True
b)
False
2.
Why do you think octopuses have the name octopus?
a)
because they have 8 eyes
b)
because they have 3 hearts
c)
because they have suckers
d)
Because they have 8 tentackles
3.
Octopuses are vertebrates.
a)
True
b)
False
4.
Octopuses live in which type of water?
a)
Fresh Water
b)
Blue Water
c)
Salt Water
d)
Ground water
5.
What is the mantle?
a)
An octopus' body
b)
a counter
c)
The eye on the octopus
d)
The circles on the arms of an octopus
6.
How many different species of octopus are there in the world?
a)
About 200!
b)
About 250!
c)
About 275!
d)
About 300!
7.
Octopus cannot...
a)
hear
b)
taste
c)
touch
d)
smell
8.
What type of octopus can kill a human with its poison?
a)
Giant Pacific
b)
Australian blue-ringed
c)
None
d)
All
9.
Which of these is an example of a gastropod?
a)
snail
b)
clam
c)
earthworm
d)
octopus
10.
Mollusk's tongue-like strip covered with teeth that point backwards
a)
gills
b)
trochopore
c)
visceral mass
d)
radula
11.
Which of these is an example of a bivalve?
a)
snail
b)
clam
c)
earthworm
d)
octopus
12.
Which of these is an example of a cephalopod?
a)
snail
b)
clam
c)
earthworm
d)
octopus
13.
All gastropods have shells
a)
true
b)
false
14.
Mollusks that have 2 shells are members of the class
a)
gastropods
b)
bivalves
c)
cephalopods
15.
Which has the largest brain of all invertebrates?
a)
bivalves
b)
gastropods
c)
cephalopods
d)
oligochaeta
16.
Snails are most active in dry environments.
a)
true
b)
false
17.
What type of symmetry do Molluscs have?
a)
Asymmetrical
b)
Bilateral
c)
Radial
18.
What type of circulatory system do most Molluscs have?
a)
Open
b)
Closed
19.
What is the meaning of Gastropod?
a)
Soft-bodied
b)
Stomach foot
c)
Head-footed
d)
Two-shelled
20.
Which group of Molluscs does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
21.
What Mollusc group does the snail belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
22.
What Mollusc group does the nautilus belong to?
a)
Bivalves
b)
Gastropods
c)
Cephalopods
d)
Cnidarians
23.
How do Bivalves eat?
a)
Filter feeders
b)
Radula
c)
Tentacles
24.
Which of these bivalves have eyes along the edge of their mantle?
a)
scallop
b)
oyster
c)
mussel
d)
clam
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