axial skeleton
appendicular skeleton
exoskeleton
visceral skeleton
Salmander
Cryptobranchus
Necturus
Bufo
toads
frogs
salamanders
lizards
thick and cornified epithelium
poorly cornified stratified squamous epithelium
a simple columnar epithelium
small microscopic scales in it
Ichthyophis
Sharks
Rays
Cuttlefish
Ichthyopsida
Ichthyopsaurus
Ichthyodactyla
Pterodactyla
frogs
fishes
lizards
pigeons
Uraeotyphlus
Triturus
Siren
Amphiuma
Hyla
Bufo
Necturus
Ophisaurus
skull of frog
vertebrae of frog
sternum of frog
pelvis of frog
They have middle ear apparatus
They show parental cafe
They lose tail and gills during metamorphosis
All of these
Necturus
Pipa
Amblyostoma
Cryptobranchus
Hyla
Necturus
Rhacophorus
Ophisaurus
Apoda
Caudata
Anura
Cyclostomata
dry
scaly
moist
both (a) and (c)
Gill slits in adults
Long vertebral column
Tail in adults
Teeth in both the jaws
nucleated and round
enucleated and oval
enucleated and round
nucleated and oval
Ram tigrina
Hyla
Rhacophorus
Amphiuma
Amphiuma
Ichthyophis
Salamander
Necturus
Anura
Apoda
Urodela
Caudata
Oviparous
Eggs non-mosaic
fertilisation external
Cleavage-meroblastic
Elasmobranch ancestors
Amphioxis like ancestors
Crosspterygian ancestors
None of these
more terrestrial
more aquatic
more aerial
none of these
Frogs
Salamander
Ichthyophis
Necturus
Salamandar
Discoglossus
Necturus
Amphiuma
Cryptobranchus - hell bender
Necturus - mud puppy
Amphiuma - congo cell
Rhacophorous - flying frog
pronephric kidney
mesonephric kidney
metanephric kidney
both (a) and (b) ,
a single body segment each
a multiple number of body segments each
a single and from multiple segments respectively
none of these
Hyla
Bufo
Rhacophorus
Rana
lizards
rabbits
salmanders
crocodiles