Hyla
Uraeotyphlus
Ophisaurus
Discoglossus
lizards
rabbits
salmanders
crocodiles
nucleated and round
enucleated and oval
enucleated and round
nucleated and oval
Amphiuma
Ichthyophis
Salamander
Necturus
Salmander
Cryptobranchus
Necturus
Bufo
Hyla
Necturus
Rhacophorus
Ophisaurus
Frogs
Salamander
Ichthyophis
Necturus
Oviparous
Eggs non-mosaic
fertilisation external
Cleavage-meroblastic
Necturus
Pipa
Amblyostoma
Cryptobranchus
Gill slits in adults
Long vertebral column
Tail in adults
Teeth in both the jaws
Sparrow
Hyla
Mouse
Bufo
They have middle ear apparatus
They show parental cafe
They lose tail and gills during metamorphosis
All of these
Cryptobranchus - hell bender
Necturus - mud puppy
Amphiuma - congo cell
Rhacophorous - flying frog
Elasmobranch ancestors
Amphioxis like ancestors
Crosspterygian ancestors
None of these
larger in size
stronger
larger sound box
vocal sac
Ram tigrina
Hyla
Rhacophorus
Amphiuma
Anura
Apoda
Gymnophiona
Urodela
more terrestrial
more aquatic
more aerial
none of these
Salamandar
Discoglossus
Necturus
Amphiuma
pronephric kidney
mesonephric kidney
metanephric kidney
both (a) and (b) ,
Ichthyopsida
Ichthyopsaurus
Ichthyodactyla
Pterodactyla
thick and cornified epithelium
poorly cornified stratified squamous epithelium
a simple columnar epithelium
small microscopic scales in it
Apoda
Caudata
Anura
Cyclostomata
Frog
Necturus
Toad
Hyla
dry
scaly
moist
both (a) and (c)
tympanic membrane and tympanic cavity
middle ear ossicle
eustachian tube
all of these
neoteny
paedogensis
paedomorphosis
none of these
blood circulation in the body.
venous system
arterial system
all of these
axial skeleton
appendicular skeleton
exoskeleton
visceral skeleton
Anura
Apoda
Urodela
Caudata