WorksheetsPhylum Mollusca REVIEW
Total questions: 33
Worksheet time: 1hrs 15mins
Found across several Classes in Phylum Mollusca, what is the ribbon of modified teeth used for feeding and grazing called?
ARISTOTLE'S LANTERN
RADULA
MANTLE
ADDUCTOR
What are the three main parts/sections of a Gastropod's coiled shell?
umbo
apex
spire
body whorl
operculum
What is the oldest part of the shell called?
spire
umbo
operculum
papillae
What is the name of the muscle that holds a Bivalve shell together?
abdominal
adductor
siphon
foot
What are the hair-like structures that secure mussel species to a substrate?
chitin
spire
cirri
byssal threads
A gastropod that does not have a shell is known as a?
chiton
squid
nudibranch
pedalia
Structures used to pull water in and push water out of animals in Phylum Mollusca are called?
siphon
radula
operculum
spire
Calcium carbonate structure found on the muscular foot in Gastropods that secures the animal inside of its shell. Protects the animal and keeps it from drying out. The "trap door"
operculum
valve
foot
body whorl
Skin cells that contain pigment to provide protective coloration in Cephalopoda are called?
chromatin
chromatophores
chromium
chitin
What is the meaning of Gastropod?
Soft-bodied
Belly foot
Head-footed
Two-shelled
Most molluscs have what type of symmetry?
Radial
Bilateral
Asymmetry
No symmetry
What is a unique feature only found on cephalopods?
Gills
Tentacles
Siphon
Head
The protective shell of a mollusc...
is secreted by the mantle.
Grows from the end of the mollusk foot.
Is constantly replaced by bigger shells as the mollusk grows.
forms when the mollusk reaches adulthood.
Which TYPE of mollusc has two shells?
Bivalve
Gastropod
Cephalopod
Polyplacophora
Which TYPE of mollusc has ONE or NO shell?
Bivalve
Gastropod
Cephalopod
Polyplacophora
Which class of Molluscs includes squid, cuttlefish, and octopus?
Gastropods
Bivalves
Cephalopods
Polyplacophora
Which part of the Mollusc body is specialized for burrowing, and locomotion?
siphon
visceral mass
mantle
foot
Which group of cephalopods has the ability to flatten the body to fit in small spaces and change skin to blend with surroundings?
Cuttlefish
Nautilus
Squid
Octopuses
Which structure makes the valve?
Mantle
Visceral mass
Inhalant siphon
Gills
Tentacles are modified versions of the
Foot
Visceral mass
Head
Mantle
The word Mollusca means
Soft body
Many forms
Stinging cells
Porous skin
What substance are pearls made of?
Nacre
Calcium
Sodium
Silicate
What is the function of the chromatophores on the mantle of squid, octopus, and cuttlefish?
Secreting the shell
Stinging prey
Camouflage
Move water over gills
What skin enhancement is used to change the texture in a cephalopod and aid it in protection.
chromatophore
papillae
ink
radula
In which class would you find this animal?
bivalvia
gastropoda
polyplacophora
cephalopoda
In which class would you find this animal?
bivalvia
gastropoda
polyplacophora
cephalopoda
In which class would you find this animal?
bivalvia
cephalopoda
polyplacophora
gastropoda
In which class would you find animals that created these shells?
bivalvia
gastropoda
polyplacophora
cephalopoda
What are the organs on a nudibranch back that functions as a gill and as a defensive weapon with nematocysts from consumed cnidaria?
siphuncle
cerata
hemocyanin
spire
