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WorksheetsEchinoderms
Total questions: 14
Worksheet time: 7mins
Name
Class
Date
1.
What echinoderm is this?
a)
sea lily
b)
sea urchin
c)
sea cucumber
d)
sand dollar
2.
What echinoderm is this?
a)
sand dollar
b)
sea urchin
c)
sea star
d)
brittle star
3.
What does the term echinoderm mean?
a)
tube feet
b)
star shaped
c)
spiny skin
d)
stomach foot
4.
What type of symmetry do adult echinoderms exhibit?
a)
Asymmetry
b)
Pentaradial symmetry
c)
Bilateral symmetry
d)
Trilateral symmetry
5.
Echinoderms have an internal skeleton and a system of fluid-filled tubes called a(n)...
a)
water vascular system
b)
nervous system
c)
notochord
d)
ampulla
6.
Sea stars feed by
a)
Injecting poison that digests the prey
b)
Everting their stomach to digest prey
c)
Chewing their prey with jaws and teeth
d)
squeezing their prey until it dies
7.
What phylum do echinoderms belong to?
a)
Cnidaria
b)
Porifiera
c)
Echinodermata
d)
Chordata
8.
The nerve that runs down each arm of a starfish is the _____
a)
nerve ring
b)
stone nerve
c)
radial nerve
d)
ampulla
9.
What type of skeleton do echinoderms have?
a)
Exoskeleton
b)
Hydrostatic skeleton
c)
Endoskeleton
d)
Mesenteric skeleton
10.
An echinoderm with soft body and a leathery covering.
a)
sea star
b)
sand dollar
c)
sea urchin
d)
sea cucumber
11.
Hollow thin walled tubes that each end in a suction cup
a)
tube feet
b)
tentacles
c)
sand dollar
d)
sea star
12.
Echinoderms have no head or brain.
a)
True
b)
False
13.
What two echinoderms are able to regenerate?
a)
Sand dollar and sea urchin
b)
brittle star and sea star
14.
What is the process of regeneration?
a)
When an animal sheds its exoskeleton.
b)
When an animal can clean the ocean floor.
c)
When an animal can regrow a body part.
d)
When an animal recycles plastic bottles and cans.
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