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WorksheetsSponge Review
Total questions: 25
Worksheet time: 15mins
An organism that does not move. It remains attached to one place.
Spongin
Spicule
Osculum
Sessile
Collar cells that line the body cavity and have flagella that circulate water in sponges.
Choanocytes
Mesenchymes
Spongocoels
Amoebocytes
Flexible material that makes up the skeleton of some sponges.
Osculum
Spongocoel
Spicules
Spongin
The large central cavity of a sponge.
Epidermis
Endoderm
Spongocoel
Choanocyte
A large opening on a sponge through which filtered water is expelled.
Spongocoel
Spongin
Osculum
Spicule
Calcareous sponges have spicules made of
silica
calcium carbonate
collagen
liquid goo
What is the main purpose of spicules?
to scare predators
offence
support/ skeletal structures
to attach muscles
Specialized reproductive structures made to survive harsh conditions
Spicules
Plankton
Flagella
Gemmules
The sponge has no organs, tissues, and no nervous system.
True
False
Sponges are considered the simplest animals because
they are sessile
they die when torn apart
they have no specialized organs
they are not the simplest animals
Which characteristic do sponges share with all other animals?
multicellular
heterotrophic
eukaryotes
no cell walls
all of the above
Cell that generates a current and feeds.
A
B
C
D
Amoebacyte
A
B
C
D
E
Spicule
A
B
C
D
E
Choanocyte
A
B
C
D
E
Which lists sponge body plans from most to least complex?
ascon, sycon, leucon
sycon, ascon, leucon
leucon, ascon, sycon
leucon, sycon, ascon
