a single body segment each
a multiple number of body segments each
a single and from multiple segments respectively
none of these
B. a multiple number of body segments each
larger in size
stronger
larger sound box
vocal sac
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
toads
frogs
salamanders
lizards
blood circulation in the body.
venous system
arterial system
all of these
Sparrow
Hyla
Mouse
Bufo
Uraeotyphlus
Triturus
Siren
Amphiuma
They have middle ear apparatus
They show parental cafe
They lose tail and gills during metamorphosis
All of these
Necturus
Pipa
Amblyostoma
Cryptobranchus
Oviparous
Eggs non-mosaic
fertilisation external
Cleavage-meroblastic
Frog
Necturus
Toad
Hyla
Hyla
Necturus
Rhacophorus
Ophisaurus
lizards
rabbits
salmanders
crocodiles
Amphiuma
Ichthyophis
Salamander
Necturus
have two auricles and one ventricle
have smooth moist skin
have a cloaca
respire by lungs in adult stage
skull of frog
vertebrae of frog
sternum of frog
pelvis of frog
Anura
Apoda
Gymnophiona
Urodela
Apoda
Caudata
Anura
Cyclostomata
dry
scaly
moist
both (a) and (c)
Cryptobranchus - hell bender
Necturus - mud puppy
Amphiuma - congo cell
Rhacophorous - flying frog
frogs
fishes
lizards
pigeons
Oesophagus
Rectum
Duodenum
Intestine
Cryptobranchus - hell blender
Necturus - mud puppy
Uraeotyphlus - blind worm
Alytes - midwife toad
thick and cornified epithelium
poorly cornified stratified squamous epithelium
a simple columnar epithelium
small microscopic scales in it
Anura
Apoda
Urodela
Caudata
Frogs
Salamander
Ichthyophis
Necturus
feed
breathe
drink water
none of these
axial skeleton
appendicular skeleton
exoskeleton
visceral skeleton
Hyla
Bufo
Necturus
Ophisaurus
ward off their enemies
attract the opposite sex
identify the same species
collect the young ones