Sea horse is a
mollusc
mammal
star fish
bony fish
Correct Answer :
D. bony fish
Related Questions
The pair of fins seen on either side of cloaca of fishes are the
pelvic fins
cloacal fins
anal fins
caudal fins
Anandromous fishes are those which
live in sea water and migrate to fresh water rivers and lakes for breeding
live in fresh water and migrate to sea for breeding
both (a) and (b)
none of these
Which one of the cartilaginous fishes posses an operculum over the gill ?
Trygon
Torpedo
Chimaera
Sphynta
Which of the following is a Shark ?
Dasyatis
Chimaera
Sphyma
Torpedo
Which of the following does not have lateral line organs ?
Whale
Tadpole
Aquatic urodeles
Common Indian dog fish
Which of the following is not characteristic of chondricthyes ?
Placoid scales
Heterocercal tail fin
Ventrally placed mouth
Operculum
The tympanum is absent in
dog fish
bony fishes
both (a) and (b)
all fishes
A muscular fin, aiding in propulsion is
dorsal
ventral
caudal
pelvic
Pectoral fins are not clearly marked off from the body in
sharks
rays
whales
lung fishes
Torpedo is a name for
sawfish
seahorse
electric ray
sucker fish
Fish scales originate from one of the following?
Endoderm
Mesoderm
Ectoderm
Integument
Most venomous fish is
electric fish
saw fish
stone fish
dog fish
Mermaid purse is
a shell
egg case of skate fishes
a colony of skate fishes
none of these
Salmon is an example of
anandromous migration
catadromous migration
cartilaginous fish
none of these
The flying fish Exocoetus belongs to the class
Dipnoi
Osteichthyes
Cyclostomata
Chondrichthyes
In sharks, the scales are
placoid
cycloid
ctenoid
rhombiod
Cod liver oil is a rich source of
vitamin A
iron
calcium
vitamin B complex
An anamniote group is
Primates
Aves
Crocodiles
Pisces
Placoid scales are found in
cartilaginous fishes
bony fishes
lung fishes
paleontological fishes
Study of sharks and rays is known as
Saurology
Traumatology
Torpedology
Ichthyology
Chondricthyes is not characterised by the presence of
Placoid scales
Ventral mouth
Operculum
Five pairs of gill slits
Sharks and rays can be distinguished by
the nature of their scales
the position of the mouth
the position of gill slits
the kind of the tail fin
A group of cartilaginous fishes specialised for bottom dwelling is
sharks
whales
lung fishes
rays
Chondrichthyes differs from Osteichthves in
having gills not covered by operculum
presence of lateral line system
presence of large scales
presence of terminal mouth
The fish used to control spread of malaria is
Pterois
Fistularia
Gambusia
None of these
In fishes, the lateral line receptors are
olfactoreceptors
rheoreceptors
gustoreceptors
chemoreceptors
A homocercal tail is found in
teleosts
sharks
lung fishes
rays
Air baldder in fishes does not help in
respiration
excretion
movement
none of these
Which of the following is not true about bony fishes ?
Five pairs of gills covered with operculum
Homocercal tail
Eight pairs of gills
Any of these
Homocercal tail fin with symmetrical upper and lower lobes is present in
Scoliodon
Electric ray
Whale
Lung fish