Shark
Cod
Amia
Both (a) and (b)
D. Both (a) and (b)
Trygon
Torpedo
Chimaera
Sphynta
sound production
respiratory
locomotion
hydrostatic
Saurology
Traumatology
Torpedology
Ichthyology
Whale
Tadpole
Aquatic urodeles
Common Indian dog fish
a shell
egg case of skate fishes
a colony of skate fishes
none of these
Placoid scales
Heterocercal tail fin
Ventrally placed mouth
Operculum
pharyngeal gills
paired fins
dermal scales
all of these
Primates
Aves
Crocodiles
Pisces
lungs
air bladders
cartilaginous skeleton
fins
Dasyatis
Chimaera
Sphyma
Torpedo
teleosts
sharks
lung fishes
rays
live at the bottom of rivers
live in shallow streams
are active swimmers
live in sea water
Endoderm
Mesoderm
Ectoderm
Integument
Shark
Cod
Amia
Both (a) and (b)
a rounded body with ventral gill clefts
a flattened body with dorsal gill clefts
a flattened body with ventral gill clefts
any of these
mollusc
mammal
star fish
bony fish
Oxygen
Carbon dioxide
Fish food
Decoration
respiration
sound production
excretion
movement
pelvic fins
cloacal fins
anal fins
caudal fins
sharks
whales
lung fishes
rays
Scoliodon
Electric ray
Whale
Lung fish
Coelocanth
Diodon
Sturgeon
Labeo
all types fishes
only cartilaginous fishes
only bony fishes
sea dwelling fishes
vitamin A
iron
calcium
vitamin B complex
olfactoreceptors
rheoreceptors
gustoreceptors
chemoreceptors
anterior fins
ray fins
pectoral fins
paired fins
electric fish
saw fish
stone fish
dog fish
Osteichthyes
Chondrichthyes
Dipnoi
Holocephali
Five pairs of gills covered with operculum
Homocercal tail
Eight pairs of gills
Any of these
cartilaginous fishes
bony fishes
both (a) and (b)
all fishes except sharks