Cryptobranchus - hell blender
Necturus - mud puppy
Uraeotyphlus - blind worm
Alytes - midwife toad
C. Uraeotyphlus - blind worm
Uraeotyphlus
Triturus
Siren
Amphiuma
They have middle ear apparatus
They show parental cafe
They lose tail and gills during metamorphosis
All of these
Alytes - midwife toad
Hyla - tree frog
Necturus - mud puppy
Bufo - common toad
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
Anura
Apoda
Urodela
Caudata
nucleated and round
enucleated and oval
enucleated and round
nucleated and oval
Elasmobranch ancestors
Amphioxis like ancestors
Crosspterygian ancestors
None of these
thick and cornified epithelium
poorly cornified stratified squamous epithelium
a simple columnar epithelium
small microscopic scales in it
Apoda
Caudata
Anura
Cyclostomata
Salmander
Cryptobranchus
Necturus
Bufo
Sparrow
Hyla
Mouse
Bufo
blood circulation in the body.
venous system
arterial system
all of these
Hyla
Uraeotyphlus
Ophisaurus
Discoglossus
larger in size
stronger
larger sound box
vocal sac
a single body segment each
a multiple number of body segments each
a single and from multiple segments respectively
none of these
Amphiuma
Ichthyophis
Salamander
Necturus
lizards
rabbits
salmanders
crocodiles
Hyla
Necturus
Rhacophorus
Ophisaurus
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
dry
scaly
moist
both (a) and (c)
Anura
Apoda
Gymnophiona
Urodela
Salamandar
Discoglossus
Necturus
Amphiuma
Ichthyophis
Sharks
Rays
Cuttlefish
skull of frog
vertebrae of frog
sternum of frog
pelvis of frog
Ichthyopsida
Ichthyopsaurus
Ichthyodactyla
Pterodactyla
frogs
fishes
lizards
pigeons
ward off their enemies
attract the opposite sex
identify the same species
collect the young ones
pronephric kidney
mesonephric kidney
metanephric kidney
both (a) and (b) ,
Cryptobranchus - hell bender
Necturus - mud puppy
Amphiuma - congo cell
Rhacophorous - flying frog