The elephant tusk shell is
dentalium
cypraea
nautilus
pinctada
Correct Answer :
A. dentalium
Related Questions
A wood boring mollusc, well known for causing damage to ships and docks is
Teredo
Doris
Loligo
Octopus
Bivalve shell is found in the members of
Caphalopoda
Gastropoda
Pelecypoda
Scaphopoda
An example of a true limpet is
Sepia
Loligo
Patella
Nautilus
Internal shell is present in
Sepia
Lamellidens
Chiron
Pila
A wood boring mollusc is
patella
limax
teredo
chiton
Identify the larva which is present only in members of gastropoda :
Trochophore
Veliger
Glochidium
Muller's larva
Cypraea belong to class
Pelecypoda
Scaphopoda
Bivalva
Gastropoda
Aplysia, a marine mollusc is commonly known as
devilfish
cuttlefish
black mussel
sea hare
Which of the following includes culminate unsegmented organisms ?
Annelida
Arthropoda
Mollusca
Chordata
Sea foam which is drifted to the sea shores is a/an
external shell of cuttle fish
internal shell of cuttle fish
bones of octopus
calcareous matter of cuttle fish
Head, foot and visceral mass - this combination of characters is diagnostic of
Echinodenns
Arthropods
Molluscs
Annelida
The largest clam of Indian ocean is
Unio
Mytilus
Teredo
Tridacna
The generic name of apple snail is
Pila
Aplysia
Helix
Aphrodite
Osphradium is to test purity of water in
Pila
Starfish
Housefly
Earthworm
Sea hare is the common name of
Sepia
Octopus
Aplysia
Doris
Prehensile tentacles of Cephalopoda are derived from
thoracic appendages
foot
head appendages
none of these
The common name of Octopus is
cuttlefish
squid
flying squid
devil fish
Osphradium in molluscs is
a sensory organ for balancing
a sensory organ for smell
swimming organ
none of these
Pteropods are small marine gastropods, often termed as
elephant tusk shells
butterflies of the sea
lerrfons of the sea
cucumbers of the sea
The method of induction of foreign particles between the mantle and the shell of the pearl oyster and thus stimulating the pearl formation, was introduced in Japan by
Mikimoto
Katu
Haeckel
Von Mohl
Which of the following invertebrate phylum has the eye structure nearest to that of vertebrates ?
Annelida
Moliusca
Echinodermata
Arthropoda
Sepia and Octopus are marine molluscs and their swift locomotion in water is affected by
expelling water in a jet through siphon
lashing moment of their cephalic arms
characteristic undulations of their lateral fins
none of these
Shipworm is
an annelid
an arthropod
an echinoderm
a mollusc
The largest invertebrate is
giant clam
giant squid
giant Snail
giant octopus
The blood pigment of moliusca is
myoglobin
anthocyanin
haemocyanin
hemoglobin
Well marked cephalistion is found in
Gastropoda
Caphalopoda
Bivalvia
Scaphopoda
The reduced foot and tubular sheil is present in
Gastropoda
Scaphopoda
Bivalva
Cephalopoda
Pectan is commonly called
scallop
sea mussel
razor shell
any of these
A mollusc which is adapted to an amphibious mode of life is
sea hare
Pond snail
fresh water mussel
chiton
A radula is typically found in
Unio
Vila
Mytilus
Loligo