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WorksheetsSponges and Cnidaria
Total questions: 12
Worksheet time: 11mins
Name
Class
Date
1.
What is an invertebrate?
a)
An animal with a backbone
b)
a mammal
c)
An animal without a backbone
d)
birds
2.
This picture is an example of which group of invertebrates?
a)
Segmented worms
b)
Fish
c)
Sponges
d)
Arthropods
3.
Between 90-95% of all animals on earth can be classified as _____.
a)
invertebrates
b)
vertebrates
c)
reptiles
d)
mammals
4.
I have a digestive cavity with one opening, and have tentacles. I am a hydra.
a)
Echinoderm
b)
Cnidarian
c)
Arthropod
d)
Mollusk
5.
Which phylum is mainly asymmetrical?
a)
cnidaria
b)
porifera (sponges)
c)
echinodermata
d)
arthropoda
6.
These organisms all have nematocysts.
a)
cnidaria
b)
mollusca
c)
arthropoda
d)
porifera
7.
Cnidarians have what kind of symmetry?
a)
Radial
b)
Bilateral
c)
Asymmetrical
8.
Nematocysts (stinging cells) are used for...
a)
Defense
b)
Catch organisms for food
c)
Both of these
9.
Sponges are members of the ________ Kingdom.
a)
Animal
b)
Larva
c)
Porifera
d)
Sessile
10.
What surrounds the mouth of Cnidarians?
a)
guard cells
b)
pinococytes
c)
tentacles
d)
spines
11.
Anemones belong to which phylum?
a)
Cnidaria
b)
Porifera
c)
Echinodermata
d)
Platyhelminthes
12.
What type of symmetry does a sponge have?
a)
bilateral symmetry
b)
radial symmetry
c)
asymmetry
d)
medial symmetry
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