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Porifera Review
Test Description: Zoology review sponges
Instructions: Answer all questions to get your test result.
1) External outgrowth develops into a tiny individual which eventually detaches and grows to adult.
A
fragmentation and regeneration
B
budding
C
gemmulation
D
all of these
2) Body form with single osculum but thicker body wall because of infolding
A
paranoid
B
leuconoid
C
asconoid
D
syconoid
3) Which form of reproduction does not allow for greater variation?
A
all of the above
B
gemmulation
C
external fertilization
D
internal fertilization
4) Body form with many choanocyte lined cavities joined by multiple canals
A
asconoid
B
both leuconoid and syconoid
C
syconoid
D
leuconoid
5) Organisms that eat sponges
A
humans
B
reindeer
C
certain insect larvae
D
tadpoles
6) This reproductive form employed by sponges allows for survival through dry or cold periods
A
fragmentation
B
gemmulation
C
internal fertilization
D
budding
7) This reproductive strategy allows for a large population of offspring with very little investment.
A
fragmentation
B
external fertilization
C
all of these are correct
D
internal fertilization
8) Which of the following are consumed by sponges
A
bacteria
B
tiny fish
C
organic matter (waste)
D
sponges consume all of these
9) Which of the following does NOT describe the Phylum Porifera?
A
multicellular
B
autotrophs
C
filter feeders
D
sessile adults
10) Which of the following does NOT apply to the Phylum Porifera
A
well-organized tissues
B
sometimes carnivorous
C
metazoans
D
efficient filtering helps coral reefs thrive
*select an answer for all questions
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