cartilaginous fishes
bony fishes
both (a) and (b)
all fishes except sharks
the nature of their scales
the position of the mouth
the position of gill slits
the kind of the tail fin
respiration
sound production
excretion
movement
all types fishes
only cartilaginous fishes
only bony fishes
sea dwelling fishes
live at the bottom of rivers
live in shallow streams
are active swimmers
live in sea water
Dipnoi
Osteichthyes
Cyclostomata
Chondrichthyes
Whale
Tadpole
Aquatic urodeles
Common Indian dog fish
Shark
Cod
Amia
Both (a) and (b)
respiration
excretion
movement
none of these
a rounded body with ventral gill clefts
a flattened body with dorsal gill clefts
a flattened body with ventral gill clefts
any of these
cartilaginous fishes
bony fishes
lung fishes
paleontological fishes
dorsal
ventral
caudal
pelvic
olfactoreceptors
rheoreceptors
gustoreceptors
chemoreceptors
hippocampus
labeo
anabes
none of these
teleosts
sharks
lung fishes
rays
anterior fins
ray fins
pectoral fins
paired fins
10 volts
100 volts
50 volts
150 volts
Primates
Aves
Crocodiles
Pisces
Scoliodon
Electric ray
Whale
Lung fish
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
Coelocanth
Diodon
Sturgeon
Labeo
Oxygen
Carbon dioxide
Fish food
Decoration
sawfish
seahorse
electric ray
sucker fish
Trygon
Torpedo
Chimaera
Sphynta
electric fish
saw fish
stone fish
dog fish
Osteichthyes
Chondrichthyes
Dipnoi
Holocephali
Dasyatis
Chimaera
Sphyma
Torpedo
mollusc
mammal
star fish
bony fish
Placoid scales
Ventral mouth
Operculum
Five pairs of gill slits
Endoderm
Mesoderm
Ectoderm
Integument