They have middle ear apparatus
They show parental cafe
They lose tail and gills during metamorphosis
All of these
A. They have middle ear apparatus
Cryptobranchus - hell bender
Necturus - mud puppy
Amphiuma - congo cell
Rhacophorous - flying frog
thick and cornified epithelium
poorly cornified stratified squamous epithelium
a simple columnar epithelium
small microscopic scales in it
larger in size
stronger
larger sound box
vocal sac
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
Necturus
Pipa
Amblyostoma
Cryptobranchus
Oviparous
Eggs non-mosaic
fertilisation external
Cleavage-meroblastic
Amphiuma
Ichthyophis
Salamander
Necturus
frogs
fishes
lizards
pigeons
axial skeleton
appendicular skeleton
exoskeleton
visceral skeleton
development of sturdy eggs
change over to herbivorous feeding
occurence of metamoophosis on amphibia
evolution of terrestrial habit
Gill slits in adults
Long vertebral column
Tail in adults
Teeth in both the jaws
Frog
Necturus
Toad
Hyla
Ichthyophis
Sharks
Rays
Cuttlefish
Sparrow
Hyla
Mouse
Bufo
neoteny
paedogensis
paedomorphosis
none of these
Alytes - midwife toad
Hyla - tree frog
Necturus - mud puppy
Bufo - common toad
feed
breathe
drink water
none of these
skull of frog
vertebrae of frog
sternum of frog
pelvis of frog
Elasmobranch ancestors
Amphioxis like ancestors
Crosspterygian ancestors
None of these
have two auricles and one ventricle
have smooth moist skin
have a cloaca
respire by lungs in adult stage
more terrestrial
more aquatic
more aerial
none of these
Salamandar
Discoglossus
Necturus
Amphiuma
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
Ram tigrina
Hyla
Rhacophorus
Amphiuma
blood circulation in the body.
venous system
arterial system
all of these
a single body segment each
a multiple number of body segments each
a single and from multiple segments respectively
none of these
Hyla
Bufo
Necturus
Ophisaurus
Frogs
Salamander
Ichthyophis
Necturus
dry
scaly
moist
both (a) and (c)
Ichthyopsida
Ichthyopsaurus
Ichthyodactyla
Pterodactyla