Chiton
Unio
Teredo
Nautilus
A. Chiton
devilfish
cuttlefish
black mussel
sea hare
Teredo
Doris
Loligo
Octopus
cuttlefish
squid
flying squid
devil fish
a sensory organ for balancing
a sensory organ for smell
swimming organ
none of these
Gastropoda
Scaphopoda
Bivalva
Cephalopoda
Pinctada
Unio
Anodonta
Ostrea
prismatic layer
periostracum
nacre
mantle
Unio
Vila
Mytilus
Loligo
Echinodenns
Arthropods
Molluscs
Annelida
Amphineve
Gastropoda
Scaphopoda
Caphalopoda
Pila
Aplysia
Helix
Aphrodite
myoglobin
anthocyanin
haemocyanin
hemoglobin
Unio
Mytilus
Teredo
Tridacna
Gastropoda
Criton
Bivalvia
Monoplacophora
thoracic appendages
foot
head appendages
none of these
Annelida
Arthropoda
Mollusca
Chordata
patella
limax
teredo
chiton
giant clam
giant squid
giant Snail
giant octopus
limax and helix
pila and helix
lymnaea and planorbis
none of these
Pila
Starfish
Housefly
Earthworm
book lungs
pulmonary sacs
gills
respiratory siphons
Pelecypoda
Scaphopoda
Bivalva
Gastropoda
Crab
Aretticola
Milipede
Centipede
Sepia
Octopus
Aplysia
Doris
pulmonary sac
ctenidia
book lungs
trachea
Chaetopterus
Aphrodite
Amphihite
Limidus
Chiton
Unio
Teredo
Nautilus
Sepia (Caphalopoda)
Uttio (Pelecypoda)
Dentalium (Scaphopoda)
Pila (Gastropoda)
Neoplina
Chiton
Dentalium
Patella
Sepia
Loligo
Octopus
Mytilus