Anura
Apoda
Gymnophiona
Urodela
D. Urodela
development of sturdy eggs
change over to herbivorous feeding
occurence of metamoophosis on amphibia
evolution of terrestrial habit
Anura
Apoda
Urodela
Caudata
Elasmobranch ancestors
Amphioxis like ancestors
Crosspterygian ancestors
None of these
Hyla
Bufo
Necturus
Ophisaurus
Ichthyophis
Sharks
Rays
Cuttlefish
Oviparous
Eggs non-mosaic
fertilisation external
Cleavage-meroblastic
have two auricles and one ventricle
have smooth moist skin
have a cloaca
respire by lungs in adult stage
toads
frogs
salamanders
lizards
nucleated and round
enucleated and oval
enucleated and round
nucleated and oval
frogs
fishes
lizards
pigeons
Hyla
Necturus
Rhacophorus
Ophisaurus
Hyla
Uraeotyphlus
Ophisaurus
Discoglossus
Salmander
Cryptobranchus
Necturus
Bufo
Ichthyopsida
Ichthyopsaurus
Ichthyodactyla
Pterodactyla
Ram tigrina
Hyla
Rhacophorus
Amphiuma
feed
breathe
drink water
none of these
dry
scaly
moist
both (a) and (c)
Sparrow
Hyla
Mouse
Bufo
lizards
rabbits
salmanders
crocodiles
Frog
Necturus
Toad
Hyla
thick and cornified epithelium
poorly cornified stratified squamous epithelium
a simple columnar epithelium
small microscopic scales in it
a single body segment each
a multiple number of body segments each
a single and from multiple segments respectively
none of these
skull of frog
vertebrae of frog
sternum of frog
pelvis of frog
single occipital condyle and 10 pairs of cranial nerves
single occipital condyle and 12 pairs of cranial nerves
two occipital condyles and 10 pairs of cranial nerves
two occipital condyles and 12 pairs of cranial nerves
They have middle ear apparatus
They show parental cafe
They lose tail and gills during metamorphosis
All of these
it can get its food easily in water
its hindlimbs are webbed and help in swimming
it respires through skin
it can see through its transparent eye lids while swimming
axial skeleton
appendicular skeleton
exoskeleton
visceral skeleton
ward off their enemies
attract the opposite sex
identify the same species
collect the young ones
Hyla
Bufo
Rhacophorus
Rana
Apoda
Caudata
Anura
Cyclostomata