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WorksheetsBiology II: Porifera, Cnidaria, and Echinodermata
Total questions: 14
Worksheet time: 7mins
Name
Class
Date
1.
These are the epidermal cells that cover the outside of a sponge
a)
porocytes
b)
pinacocytes
c)
choanocytes
d)
amoebocytes
2.
Small spikes that we find in the body of a sponge
a)
spongin
b)
chitin
c)
spongecoel
d)
spicules
3.
The opening at the top of a sponge through which water exits
a)
osculum
b)
incurrent canal
c)
stone canal
d)
spongecoel
4.
A type of sponge with calcium carbonate spicules
a)
glass sponge
b)
bath sponge
c)
calcareous sponge
d)
carbonous sponge
5.
A word that means a sponge or polyp does not move
a)
motile
b)
sessile
c)
mobile
d)
portable
6.
The movable phase of a cnidarians life is known as this
a)
sessile
b)
polyp
c)
madreporite
d)
medusa
7.
The stinging cells found in nematocyts on cnidarians
a)
cnidocytes
b)
choanocytes
c)
pinacocytes
d)
mesocytes
8.
The non-cellular jelly-like matrix of a cnidarian that lies between the epidermis and gastrodermis
a)
spongecoel
b)
gastrovascular cavity
c)
coelomic cavity
d)
mesoglea
9.
Which of the following is NOT a cnidarian?
a)
sea urchin
b)
sea anenome
c)
jellyfish
d)
coral
10.
Echinoderms have a water vascular system and move with...
a)
a singular foot
b)
multiple tube feet
c)
contracting muscles
d)
tentacles
11.
Echinoderms bring water into their vascular system via this sieve plate
a)
stone canal
b)
madreporite
c)
hepatic caecum
d)
ring canal
12.
The number of stomachs seen in a sea star.
a)
1
b)
2
c)
3
d)
4
13.
Which of the following is NOT an echinoderm?
a)
sea star
b)
crinoid
c)
sea anenome
d)
sea cucumber
14.
This echinoderm can protect itself by ejecting its internal organs
a)
sea cucumber
b)
sea star
c)
sea urchin
d)
sea lily
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