WorksheetsMollusca and Echinoderms
Total questions: 18
Worksheet time: 18mins
Name
Class
Date
1.
What is an invertebrate?
a)
An animal with a backbone
b)
a mammal
c)
An animal without a backbone
d)
birds
2.
The organism in the picture is a(n)
a)
echinoderm
b)
mollusk
c)
arthropod
d)
cnidarian
3.
I have a soft-body, a hard shell, and live on land and water. What am I?
a)
Mollusk
b)
Arthropod
c)
Echinoderm
d)
Cnidarian
4.
I am spiny, have a water vascular system with tube feet, radial symmetry, and am called a brittle star.
a)
Mullosk
b)
Arthropod
c)
Echinoderm
d)
Cnidarian
5.
The organism shown is an example of a(n)
a)
mollusk
b)
cnidarian
c)
sponge
d)
echinoderm
6.
Which is not a main class within the phylum of mollusca?
a)
crustacean
b)
cephalopod
c)
gastropod
d)
bivalve
7.
Which of the following is a cephalopod?
a)
snail
b)
slug
c)
oyster
d)
octopus
8.
This belongs in the _______ phylum.
a)
annelida
b)
echinodermata
c)
arthropoda
d)
cnidaria
9.
These are ___________.
a)
bivalves
b)
univalves
c)
cephalopods
d)
gastropods
10.
Echinoderms have the ability to regenerate body parts.
a)
False
b)
True
11.
What type of body do all Mollusks have?
a)
Segmented
b)
Soft
c)
Rigid
d)
Clear
12.
Which class of Mollusks includes snails, slugs, or nudibranches?
a)
Cephalapods
b)
Bivalves
c)
Gastropods
13.
Which class of Mollusks include organisms that all have two shells?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
14.
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
15.
Which class of Mollusks all have tentacles?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
16.
What type of symmetry do MOST mollusks have?
a)
Bilateral
b)
Radial
c)
Circular
d)
Asymmetrical
17.
Which class of Mollusks have the most advanced nervous system?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
18.
What type of symmetry do echinoderms exhibit as adults?
a)
asymmetrical
b)
Bilateral
c)
Radial
d)
Circular
100 %
