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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
organ system
B
tissue
C
organ
D
cellular
2) Cnidarians have two basic body forms the
A
polyp and medusa
B
polyp and colonial
C
medusa and bud
D
polyp and bud
3) The stinging cells of cnidarians are called
A
mesocytes
B
glial cells
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
stomach
D
intestine
5) The jelly like substance that is between the outer and inner layers of a cnidarian is the
A
mesoderm
B
endoglea
C
mesoglea
D
endoderm
6) Cnidarians that secrete a calcium carbonate house are the
A
obelia.
B
hydras.
C
corals.
D
anemones.
7) The body form that is dominate in the anemones is the
A
medusa
B
germinative
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
ectoderm and endoderm
D
endoderm and mesoderm
9) A cnidarian that consists of a gas filled float and a colony of polyps is the
A
Portuguese man-of-war
B
coral
C
hydra
D
anemome
10) A type of locomotion unique to hydra is
A
inching
B
swimming
C
walking
D
somersaulting
*select an answer for all questions
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