book lungs
pulmonary sacs
gills
respiratory siphons
C. gills
Pila
Aplysia
Helix
Aphrodite
expelling water in a jet through siphon
lashing moment of their cephalic arms
characteristic undulations of their lateral fins
none of these
Pila
Starfish
Housefly
Earthworm
Sepia
Loligo
Octopus
Mytilus
Gastropoda
Criton
Bivalvia
Monoplacophora
Annelida
Moliusca
Echinodermata
Arthropoda
Annelida
Arthropoda
Mollusca
Chordata
Sepia
Octopus
Aplysia
Doris
thoracic appendages
foot
head appendages
none of these
Pholas
Teredo
Solen
Dentalium
Mikimoto
Katu
Haeckel
Von Mohl
Pila
Unio
Mytilus
Nautilus
Neoplina
Chiton
Dentalium
Patella
Sepia (Caphalopoda)
Uttio (Pelecypoda)
Dentalium (Scaphopoda)
Pila (Gastropoda)
Amphineve
Gastropoda
Scaphopoda
Caphalopoda
Teredo
Doris
Loligo
Octopus
Octopus
Sepia
Mytilus
Teredo
sea hare
Pond snail
fresh water mussel
chiton
a sensory organ for balancing
a sensory organ for smell
swimming organ
none of these
Sepia
Lamellidens
Chiron
Pila
Trochophore
Veliger
Glochidium
Muller's larva
foot is located on head
head is fused with thorax
head is located on foot
notochord extends upto cephalic region
cuttlefish
squid
flying squid
devil fish
Pinctada
Unio
Anodonta
Ostrea
Chiton
Unio
Teredo
Nautilus
scallop
sea mussel
razor shell
any of these
Caphalopods
Scaphopods
Bivalva
Gastropods
book lungs
pulmonary sacs
gills
respiratory siphons
an annelid
an arthropod
an echinoderm
a mollusc
Nautilus
Pila
Argpnata
Unio