cartilaginous fishes
bony fishes
both (a) and (b)
all fishes except sharks
A. cartilaginous fishes
Coelocanth
Diodon
Sturgeon
Labeo
cartilaginous fishes
bony fishes
both (a) and (b)
all fishes except sharks
anandromous migration
catadromous migration
cartilaginous fish
none of these
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
pharyngeal gills
paired fins
dermal scales
all of these
sharks
whales
lung fishes
rays
a rounded body with ventral gill clefts
a flattened body with dorsal gill clefts
a flattened body with ventral gill clefts
any of these
Placoid scales
Ventral mouth
Operculum
Five pairs of gill slits
Shark
Cod
Amia
Both (a) and (b)
nostrils
mouth
gill slits
swimming bladder
Five pairs of gills covered with operculum
Homocercal tail
Eight pairs of gills
Any of these
mollusc
mammal
star fish
bony fish
ampullae of lorenzini
lateral line system
stato-acoustic organs
neuromast organs
Saurology
Traumatology
Torpedology
Ichthyology
teleosts
sharks
lung fishes
rays
Primates
Aves
Crocodiles
Pisces
Sharks
Stingray
Dogfish
Catfish
Scoliodon
Electric ray
Whale
Lung fish
olfactoreceptors
rheoreceptors
gustoreceptors
chemoreceptors
Osteichthyes
Chondrichthyes
Dipnoi
Holocephali
hippocampus
labeo
anabes
none of these
10 volts
100 volts
50 volts
150 volts
respiration
excretion
movement
none of these
cartilaginous fishes
bony fishes
lung fishes
paleontological fishes
Dasyatis
Chimaera
Sphyma
Torpedo
pelvic fins
cloacal fins
anal fins
caudal fins
live at the bottom of rivers
live in shallow streams
are active swimmers
live in sea water
dorsal
ventral
caudal
pelvic
Pterois
Fistularia
Gambusia
None of these
all types fishes
only cartilaginous fishes
only bony fishes
sea dwelling fishes