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WorksheetsEchinoderms Review
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
What does the term echinoderm mean?
a)
tube feet
b)
star shaped
c)
spiny skin
d)
stomach foot
2.
What internal system of canals and external tube feet help echinoderms move and feed?
a)
gastrovascular cavity
b)
water vascular system
c)
hydrostatic skeleton
d)
cardiovascular system
3.
Which of the following organisms is NOT an echinoderm?
a)
sea cucumber
b)
sand dollar
c)
nudibranch
d)
brittle starfish
4.
With regard to body cavities, how are echinoderms classified?
a)
Deuterostome coelomate
b)
Protostome coelomate
c)
Deuterostome acoelomate
d)
Protostome acoelomate
5.
By what process will starfish regrow an arm torn off by a predator?
a)
Reconstructive meiosis
b)
Regeneration
c)
Tissue regenesis
d)
Mitotic restoration
6.
What type of skeleton do echinoderms have?
a)
Exoskeleton
b)
Hydrostatic skeleton
c)
Endoskeleton
d)
Mesenteric skeleton
7.
What is the primary component of an echinoderm's skeleton?
a)
Spicules of chitin plates
b)
Ossicles of chitin plates
c)
Spicules of calcium carbonate
d)
Ossicles of calcium carbonate
8.
What type of symmetry do larval echinoderms exhibit?
a)
Asymmetry
b)
Radial symmetry
c)
Bilateral symmetry
d)
Trilateral symmetry
9.
What type of symmetry do adult echinoderms exhibit?
a)
Asymmetry
b)
Radial symmetry
c)
Bilateral symmetry
d)
Trilateral symmetry
10.
How do echinoderms excrete nitrogenous waste from their bodies?
a)
through diffusion
b)
through nephridia
c)
through respiratory trees
d)
through dermal gills
11.
How are the eggs of echinoderms fertilized?
a)
internally
b)
externally
c)
asexually
d)
pseuodsexually
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