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WorksheetsZoology 1 Unit 4 Test Review
Total questions: 44
Worksheet time: 30mins
Which Molluscan class is worm-like and shell-less?
Caudofoveata
Solenogastres
Polyplacophora
Monoplacophora
Scaphopoda
Which Molluscan class is worm-like and foot-less?
Caudofoveata
Solenogastres
Polyplacophora
Monoplacophora
Scaphopoda
Which Molluscan class has an 8-part shell and is mostly marine?
Caudofoveata
Solenogastres
Polyplacophora
Monoplacophora
Scaphopoda
Which Molluscan class has a 1-part shell with a broad and flat foot?
Caudofoveata
Solenogastres
Polyplacophora
Monoplacophora
Scaphopoda
Which Molluscan class has a tubular shell with no head?
Caudofoveata
Solenogastres
Polyplacophora
Monoplacophora
Scaphopoda
Which Molluscan class has a coiled shell (when present) and goes through torsion?
Gastropoda
Cephalopoda
Bivalvia
Which Molluscan class has tentacles and no radula?
Gastropoda
Cephalopoda
Bivalvia
Which Molluscan class has a two-part shell, no head, and no radula?
Gastropoda
Cephalopoda
Bivalvia
Which of the following ARE processes that occur in the mantle cavity of molluscs?
Excretion
Reproduction
Gas Exchange
Movement
Attachment
What part of the Molluscan body is responsible for digestion, circulation, and reproduction?
Head-foot
Visceral Mass
Mantle
What part of the Molluscan body contains the mouth and sensory structures?
Head-foot
Visceral Mass
Mantle
What part of the Molluscan body secretes the shell?
Head-foot
Visceral Mass
Mantle
There are three layers of the Molluscan Shell. Which is the thickest?
Periostracum
Prismatic Layer
Nacreous Layer
There are three layers of the Molluscan Shell. Which is made of a hard protein?
Periostracum
Prismatic Layer
Nacreous Layer
There are three layers of the Molluscan Shell. Which is the middle layer?
Periostracum
Prismatic Layer
Nacreous Layer
There are three layers of the Molluscan Shell. Which is the outer layer?
Periostracum
Prismatic Layer
Nacreous Layer
There are three layers of the Molluscan Shell. Which is the inner layer?
Periostracum
Prismatic Layer
Nacreous Layer
There are three layers of the Molluscan Shell. Which is made of calcium carbonate and other organic materials?
Periostracum
Prismatic Layer
Nacreous Layer
There are three layers of the Molluscan Shell. Which is made of only calcium carbonate?
Periostracum
Prismatic Layer
Nacreous Layer
What is the tongue portion of the mollusc called?
Radula
Chitin
Odontophore
Esophagus
Snails, slugs, and limpets are found in what Molluscan class?
Gastropoda
Cephalopoda
Bivalvia
The main use for torsion in gastropods is for what?
(a)
What is the hard covering on gastropod shells that creates a barrier during torsion?
(a)
How do small gastropods move?
cilia and mucous
muscular movements
How do large gastropods move?
cilia and mucous
muscular movements
What part of the gastropod digestive system if an area where food is trapped and digestion begins?
(a)
What type of circulatory system does not have vessels and blood bathes cells in the tissue spaces?
Closed
Open
The type of skeleton found in gastropods that allows for blood to be under pressure to support the body:
(a)
What controls the nervous system in gastropods instead of a brain?
(a)
What is the primary larva of marine gastropods called?
(a)
Clams, oysters, mussels, and scallops are found in what Molluscan class?
Gastropoda
Cephalopoda
Bivalvia
Which Molluscan class makes pearls?
Gastropoda
Cephalopoda
Bivalvia
What is the oldest part of the bivalve shell?
(a)
What are the strong muscles that hold the bivalve shell closed?
(a)
What is the veliger stage of the Family Unionidae that is a fish parasite?
(a)
Octopuses, squid, nautiluses, and cuttlefish are found in what Molluscan class?
Gastropoda
Cephalopoda
Bivalvia
What is the only cephalopod with an external shell?
(a)
What is the cord of tissue that replaces fluids with gas in the nautilus shell?
(a)
What is the internal shell of a squid called?
(a)
What is the method of movement that cephalopods use when they need to move quickly?
(a)
What is the muscular action that moves food to the stomach for digestion in cephalopods? This motion replaces ciliary action.
(a)
What type of circulatory system is found in cephalopods?
Closed
Open
What is formed by a fusion of ganglia in cephalopods?
(a)
Cells in cephalopods that allow them to change their color.
(a)
