a sensory organ for balancing
a sensory organ for smell
swimming organ
none of these
scallop
sea mussel
razor shell
any of these
Annelida
Moliusca
Echinodermata
Arthropoda
giant clam
giant squid
giant Snail
giant octopus
book lungs
pulmonary sacs
gills
respiratory siphons
Crab
Aretticola
Milipede
Centipede
Gastropoda
Scaphopoda
Bivalva
Cephalopoda
devilfish
cuttlefish
black mussel
sea hare
Amphineve
Gastropoda
Scaphopoda
Caphalopoda
Sepia
Octopus
Aplysia
Doris
Trochophore
Veliger
Glochidium
Muller's larva
pulmonary sac
ctenidia
book lungs
trachea
external shell of cuttle fish
internal shell of cuttle fish
bones of octopus
calcareous matter of cuttle fish
Octopus
Sepia
Mytilus
Teredo
Neoplina
Chiton
Dentalium
Patella
foot is located on head
head is fused with thorax
head is located on foot
notochord extends upto cephalic region
Chaetopterus
Aphrodite
Amphihite
Limidus
Chiton
Unio
Teredo
Nautilus
Unio
Vila
Mytilus
Loligo
Gastropoda
Criton
Bivalvia
Monoplacophora
prismatic layer
periostracum
nacre
mantle
Sepia (Caphalopoda)
Uttio (Pelecypoda)
Dentalium (Scaphopoda)
Pila (Gastropoda)
thoracic appendages
foot
head appendages
none of these
Echinodenns
Arthropods
Molluscs
Annelida
Caphalopoda
Gastropoda
Pelecypoda
Scaphopoda
Pholas
Teredo
Solen
Dentalium
expelling water in a jet through siphon
lashing moment of their cephalic arms
characteristic undulations of their lateral fins
none of these
cuttlefish
squid
flying squid
devil fish
an annelid
an arthropod
an echinoderm
a mollusc
myoglobin
anthocyanin
haemocyanin
hemoglobin