Torpedo is a name for
sawfish
seahorse
electric ray
sucker fish
Correct Answer :
C. electric ray
Related Questions
Which of the following is not characteristic of chondricthyes ?
Placoid scales
Heterocercal tail fin
Ventrally placed mouth
Operculum
Water into the gills of fishes passes through
nostrils
mouth
gill slits
swimming bladder
Which of the following fishes lack claspers, used for internal fertilization in cartilaginous fishes ?
Sharks
Stingray
Dogfish
Catfish
Fishes swim in water because they have
lungs
air bladders
cartilaginous skeleton
fins
The pair of fins seen on either side of cloaca of fishes are the
pelvic fins
cloacal fins
anal fins
caudal fins
Placoid scales are found in
cartilaginous fishes
bony fishes
lung fishes
paleontological fishes
A homocercal tail is found in
teleosts
sharks
lung fishes
rays
Air bladder in fishes does not help in
respiration
sound production
excretion
movement
Torpedo, the electric ray, could give a shock of about
10 volts
100 volts
50 volts
150 volts
Which fish is famous for cod liver oil ?
Shark
Cod
Amia
Both (a) and (b)
The function of swim bladder in fishes is mainly
sound production
respiratory
locomotion
hydrostatic
Parental care by males is found in
hippocampus
labeo
anabes
none of these
Most venomous fish is
electric fish
saw fish
stone fish
dog fish
The tympanum is absent in
dog fish
bony fishes
both (a) and (b)
all fishes
Salmon is an example of
anandromous migration
catadromous migration
cartilaginous fish
none of these
Rays have
a rounded body with ventral gill clefts
a flattened body with dorsal gill clefts
a flattened body with ventral gill clefts
any of these
Fillibranch gills are present in
all types fishes
only cartilaginous fishes
only bony fishes
sea dwelling fishes
An anamniote group is
Primates
Aves
Crocodiles
Pisces
Homocercal tail fin with symmetrical upper and lower lobes is present in
Scoliodon
Electric ray
Whale
Lung fish
Study of sharks and rays is known as
Saurology
Traumatology
Torpedology
Ichthyology
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
Fish scales originate from one of the following?
Endoderm
Mesoderm
Ectoderm
Integument
The saw fish Pristis is a member of the class
Osteichthyes
Chondrichthyes
Dipnoi
Holocephali
A group of cartilaginous fishes specialised for bottom dwelling is
sharks
whales
lung fishes
rays
In fishes, the lateral line receptors are
olfactoreceptors
rheoreceptors
gustoreceptors
chemoreceptors
Cod liver oil is a rich source of
vitamin A
iron
calcium
vitamin B complex
The fish used to control spread of malaria is
Pterois
Fistularia
Gambusia
None of these
Which of the following does not have lateral line organs ?
Whale
Tadpole
Aquatic urodeles
Common Indian dog fish
Chondrichthyes differs from Osteichthves in
having gills not covered by operculum
presence of lateral line system
presence of large scales
presence of terminal mouth
Torpedo is a name for
sawfish
seahorse
electric ray
sucker fish