Dipnoi
Osteichthyes
Cyclostomata
Chondrichthyes
B. Osteichthyes
Primates
Aves
Crocodiles
Pisces
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
cartilaginous fishes
bony fishes
lung fishes
paleontological fishes
pelvic fins
cloacal fins
anal fins
caudal fins
electric fish
saw fish
stone fish
dog fish
Saurology
Traumatology
Torpedology
Ichthyology
anterior fins
ray fins
pectoral fins
paired fins
sharks
rays
whales
lung fishes
placoid
cycloid
ctenoid
rhombiod
pharyngeal gills
paired fins
dermal scales
all of these
lungs
air bladders
cartilaginous skeleton
fins
Placoid scales
Ventral mouth
Operculum
Five pairs of gill slits
live at the bottom of rivers
live in shallow streams
are active swimmers
live in sea water
anandromous migration
catadromous migration
cartilaginous fish
none of these
dog fish
bony fishes
both (a) and (b)
all fishes
Coelocanth
Diodon
Sturgeon
Labeo
Oxygen
Carbon dioxide
Fish food
Decoration
vitamin A
iron
calcium
vitamin B complex
the nature of their scales
the position of the mouth
the position of gill slits
the kind of the tail fin
a shell
egg case of skate fishes
a colony of skate fishes
none of these
cartilaginous fishes
bony fishes
both (a) and (b)
all fishes except sharks
Five pairs of gills covered with operculum
Homocercal tail
Eight pairs of gills
Any of these
mollusc
mammal
star fish
bony fish
Trygon
Torpedo
Chimaera
Sphynta
olfactoreceptors
rheoreceptors
gustoreceptors
chemoreceptors
Pterois
Fistularia
Gambusia
None of these
having gills not covered by operculum
presence of lateral line system
presence of large scales
presence of terminal mouth
Sharks
Stingray
Dogfish
Catfish
respiration
sound production
excretion
movement
all types fishes
only cartilaginous fishes
only bony fishes
sea dwelling fishes