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Cnidarians
Test Description: BIO 2
Instructions: Answer all questions to get your test result.
1) What level of organization do cnidarians have?
A
cellular
B
organ
C
tissue
D
organ system
2) Cnidarians have two basic body forms the
A
polyp and bud
B
polyp and medusa
C
medusa and bud
D
polyp and colonial
3) The stinging cells of cnidarians are called
A
glial cells
B
mesocytes
C
interstitial cells
D
cnidocytes
4) The cavity that contains the mouth of a cnidarian is called the
A
gastrovascular cavity
B
nutritive muscular cavity
C
intestine
D
stomach
5) The jelly like substance that is between the outer and inner layers of a cnidarian is the
A
endoderm
B
mesoglea
C
endoglea
D
mesoderm
6) Cnidarians that secrete a calcium carbonate house are the
A
hydras.
B
anemones.
C
obelia.
D
corals.
7) The body form that is dominate in the anemones is the
A
germinative
B
medusa
C
colonial
D
polyp
8) What are the germ layers contained in a cnidarian embryo are the
A
ectoderm, endoderm, mesoderm
B
ectoderm and mesoderm
C
endoderm and mesoderm
D
ectoderm and endoderm
9) A cnidarian that consists of a gas filled float and a colony of polyps is the
A
coral
B
anemome
C
hydra
D
Portuguese man-of-war
10) A type of locomotion unique to hydra is
A
somersaulting
B
walking
C
inching
D
swimming
*select an answer for all questions
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