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WorksheetsCoral Reefs: Porifera
Total questions: 16
Worksheet time: 10mins
Name
Class
Date
1.
What type of symmetry do sponges (Porifera) have?
a)
asymmetrical
b)
radial
c)
bilateral
d)
medial
2.
The spongin and spicules make up what in sponges?
a)
digestive tract
b)
skin
c)
stomach
d)
skeleton
3.
Water enters sponges through the ______.
a)
ostia/ostium
b)
oscula/osculum
4.
What skeleton type?
a)
Asconoid
b)
Leuconoid
c)
Syconoid
5.
Describes an animal that does not move as an adult
a)
hermaphrodite
b)
sessile
c)
filter feeder
d)
spongin
6.
Animals bring in or attract food from the surrounding environment are ________
a)
sessile
b)
medusas
c)
filter feeders
d)
choanocytes
7.
Sponges can reproduce both sexually and asexually
a)
true
b)
false
8.
The hard "skeleton" structures in a sponge are called...
a)
Spongin
b)
Spicules
c)
Amebocytes
d)
Pinococytes
9.
What habitat can sponges be found or inhabit?
a)
Saltwater and Freshwater
b)
Saltwater only
c)
Rainforest
d)
Freshwater only
10.
Which of the following is the correct description of how Porifera get food?
a)
They hunt and capture prey using tetacles
b)
They surround food particles using cytoplasmic extensions
c)
They secrete digestive enzymes and absorb the nutrients
d)
They are suspension feeder that filter food particles out of the water
11.
Which of the following structures is not found in sponges?
a)
Choanocytes
b)
Tissues
c)
Pinacocytes
d)
Mesohyl
12.
The cilia of a choanocyte
a)
regulates the diameter of the osculum
b)
filters food from the water
c)
creates currents in the water
d)
secretes digestive enzymes
13.
What are the three body types for Porifera?
a)
Ascon, Sycon, Leucon
b)
Coelomate, Acoelomate, Pseudocoelomate
c)
Polyp, Medusa, Cube
d)
Pseudopodia, Cilliated, Flagellated
14.
The most complex sponge body form, the __________, is characterized by multiple oscula and a complex canal system where choanocytes reside in small chambers.
a)
Leucon
b)
Ascon
c)
Sycon
d)
Polyp
15.
The __________ is the simplest, but least common body form of sponge
a)
Ascon
b)
Demospongiae
c)
Sycon
d)
Leucon
16.
Sponges belong in which phylum?
a)
Cnidaria
b)
Porifera
c)
Chordata
d)
Arthropoda
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