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Cnidarian Test
Test Description: Marine Biology
Instructions: Answer all questions to get your test result.
1) Which jellyfish body form is free swimming?
A
polyp
B
medusae
2) A nematocyst is
A
a stinging cell
B
a flagellated cell
C
a sensory organ
3) Where is a nematocyst located
A
at the end of the oral arm
B
at the end of the tentacle
C
in the gastric cavity
4) Which is false?
A
nematocysts are loaded with toxins
B
neamtocysts are similar to coiled darts
C
only a few nematocysts are poisonous to humans
D
none of the answers are false
5) Which animal belongs to the phylum Cnidaria?
A
comb jellies
B
all of the animals belong to the phylum cnidaria
C
anemones
D
jellyfish
6) Cnidaria have a radially symmetrical cup or bag like body made up of two layers of calls.
A
false
B
true
7) The largest class in phylum Cnidaria is class _________________ , which includes _________________.
A
Anthozoa, corals and anemones
B
Anthozoa, jellyfish
C
Hydrozoa, siphonophore
D
Scyphozoa, jellyfish
8) Fire Corals and siphonophores are in class
A
Hydrozoa
B
Protozoa
C
Scyphozoa
D
Anthozoa
9) The portoguese man of war is in class ________________ , jellfish are in class __________________ , and box jellyfish are in class ____________
A
Hydrozoa, Scyphozoa, Cubozoa
B
Cubozoa, Scyphozoa, Hydrozoa
C
Scyphozoa, Scyphozoa, Scyphozoa
D
Hydrozoa, Anthozoa, Scyphozoa
10) Difference between comb jellies and jellyfish include (choose all that apply)
A
None of the answers are correct
B
Comb jellies have cilia on their surface and lack the characteristic cnidarians body shape
C
Comb jellies have much more powerful stinging tentacles
*select an answer for all questions
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