thoracic appendages
foot
head appendages
none of these
B. foot
Nautilus
Pila
Argpnata
Unio
giant clam
giant squid
giant Snail
giant octopus
Sepia
Loligo
Octopus
Mytilus
Pinctada
Unio
Anodonta
Ostrea
Mikimoto
Katu
Haeckel
Von Mohl
Pholas
Teredo
Solen
Dentalium
devilfish
cuttlefish
black mussel
sea hare
sea hare
Pond snail
fresh water mussel
chiton
a sensory organ for balancing
a sensory organ for smell
swimming organ
none of these
Gastropoda
Caphalopoda
Bivalvia
Scaphopoda
Pila
Aplysia
Helix
Aphrodite
cuttlefish
squid
flying squid
devil fish
Echinodenns
Arthropods
Molluscs
Annelida
Unio
Vila
Mytilus
Loligo
Trochophore
Veliger
Glochidium
Muller's larva
Teredo
Doris
Loligo
Octopus
Gastropoda
Criton
Bivalvia
Monoplacophora
Caphalopods
Scaphopods
Bivalva
Gastropods
expelling water in a jet through siphon
lashing moment of their cephalic arms
characteristic undulations of their lateral fins
none of these
external shell of cuttle fish
internal shell of cuttle fish
bones of octopus
calcareous matter of cuttle fish
Annelida
Arthropoda
Mollusca
Chordata
book lungs
pulmonary sacs
gills
respiratory siphons
Crab
Aretticola
Milipede
Centipede
Sepia (Caphalopoda)
Uttio (Pelecypoda)
Dentalium (Scaphopoda)
Pila (Gastropoda)
prismatic layer
periostracum
nacre
mantle
limax and helix
pila and helix
lymnaea and planorbis
none of these
Chaetopterus
Aphrodite
Amphihite
Limidus
foot is located on head
head is fused with thorax
head is located on foot
notochord extends upto cephalic region
Caphalopoda
Gastropoda
Pelecypoda
Scaphopoda
thoracic appendages
foot
head appendages
none of these