a rounded body with ventral gill clefts
a flattened body with dorsal gill clefts
a flattened body with ventral gill clefts
any of these
C. a flattened body with ventral gill clefts
ampullae of lorenzini
lateral line system
stato-acoustic organs
neuromast organs
respiration
excretion
movement
none of these
teleosts
sharks
lung fishes
rays
sharks
whales
lung fishes
rays
having gills not covered by operculum
presence of lateral line system
presence of large scales
presence of terminal mouth
dog fish
bony fishes
both (a) and (b)
all fishes
sawfish
seahorse
electric ray
sucker fish
Pterois
Fistularia
Gambusia
None of these
Shark
Cod
Amia
Both (a) and (b)
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
lungs
air bladders
cartilaginous skeleton
fins
Endoderm
Mesoderm
Ectoderm
Integument
a shell
egg case of skate fishes
a colony of skate fishes
none of these
anandromous migration
catadromous migration
cartilaginous fish
none of these
live at the bottom of rivers
live in shallow streams
are active swimmers
live in sea water
sharks
rays
whales
lung fishes
dorsal
ventral
caudal
pelvic
Whale
Tadpole
Aquatic urodeles
Common Indian dog fish
sound production
respiratory
locomotion
hydrostatic
vitamin A
iron
calcium
vitamin B complex
Primates
Aves
Crocodiles
Pisces
anterior fins
ray fins
pectoral fins
paired fins
Dasyatis
Chimaera
Sphyma
Torpedo
pharyngeal gills
paired fins
dermal scales
all of these
Five pairs of gills covered with operculum
Homocercal tail
Eight pairs of gills
Any of these
Osteichthyes
Chondrichthyes
Dipnoi
Holocephali
a rounded body with ventral gill clefts
a flattened body with dorsal gill clefts
a flattened body with ventral gill clefts
any of these
Dipnoi
Osteichthyes
Cyclostomata
Chondrichthyes
Coelocanth
Diodon
Sturgeon
Labeo
placoid
cycloid
ctenoid
rhombiod