WorksheetsSponges and Cnidarians
Total questions: 17
Worksheet time: 11mins
Name
Class
Date
1.
Animals that use water to bring in food from the surrounding environment are ________
a)
sessile
b)
medusas
c)
filter feeders
d)
choanocytes
2.
Sponges are members of the ________ Kingdom.
a)
Animal
b)
Larva
c)
Porifera
d)
Sessile
3.
Sponges are members of the ________ Phylum.
a)
Animal
b)
Larva
c)
Porifera
d)
Sessile
4.
What surrounds the mouth of Cnidarians?
a)
guard cells
b)
pinococytes
c)
tentacles
d)
spines
5.
Many cnidarians feature 2 body forms, the asexual ____________, and the sexual _____________.
a)
blastula, planula
b)
metusa, poly
c)
planula, blastula
d)
polyp, medusa
6.
Anemones belong to which phylum?
a)
Cnidaria
b)
Porifera
c)
Echinodermata
d)
Platyhelminthes
7.
Sponges belong to which group of animals?
a)
Vertebrates
b)
Invertebrates
8.
Animals that lack a backbone are called
a)
invertebrates
b)
vertebrates
c)
fungi
d)
organism
9.
How does the size of most invertebrates compare to the size vertebrates?
a)
invertebrates are generally larger than vertebrates
b)
they are about the same size
c)
invertebrates are generally smaller than vertebrates
d)
no one knows
10.
Sponges get their food by
a)
photosynthesis
b)
decomposing it
c)
sponges do not eat
d)
filter feeding
11.
Invertebrates have a (less/more) complex body structure than vertebrates.
a)
less
b)
more
12.
Most sponges are hermaphrodites. What does this mean?
a)
sponges can produce their own food
b)
sponges can produce both eggs and sperm
c)
sponges cannot reproduce
d)
sponges can swim around
13.
What type of symmetry does a sponge have?
a)
bilateral symmetry
b)
radial symmetry
c)
asymmetry
d)
medial symmetry
14.
What part of a sponge allows water to enter through it?
a)
collar cells
b)
spicules
c)
pores
d)
amebocyte
15.
A cnidarian captures its prey by
a)
filtering it through pores
b)
paralyzing it with venom
c)
bringing it into the osculum
d)
killing it with spikes
16.
Which body form is represented by this diagram?
a)
Mesoglea
b)
Medusa
c)
Moses
d)
Nematocyst
17.
What form is this organism? (Image 1)
a)
Polyp
b)
Medusa
100 %
