more terrestrial
more aquatic
more aerial
none of these
A. more terrestrial
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
blood circulation in the body.
venous system
arterial system
all of these
feed
breathe
drink water
none of these
Oesophagus
Rectum
Duodenum
Intestine
Frog
Necturus
Toad
Hyla
Necturus
Pipa
Amblyostoma
Cryptobranchus
They have middle ear apparatus
They show parental cafe
They lose tail and gills during metamorphosis
All of these
pronephric kidney
mesonephric kidney
metanephric kidney
both (a) and (b) ,
skull of frog
vertebrae of frog
sternum of frog
pelvis of frog
tympanic membrane and tympanic cavity
middle ear ossicle
eustachian tube
all of these
nucleated and round
enucleated and oval
enucleated and round
nucleated and oval
Frogs
Salamander
Ichthyophis
Necturus
development of sturdy eggs
change over to herbivorous feeding
occurence of metamoophosis on amphibia
evolution of terrestrial habit
dry
scaly
moist
both (a) and (c)
Hyla
Necturus
Rhacophorus
Ophisaurus
toads
frogs
salamanders
lizards
thick and cornified epithelium
poorly cornified stratified squamous epithelium
a simple columnar epithelium
small microscopic scales in it
Cryptobranchus - hell bender
Necturus - mud puppy
Amphiuma - congo cell
Rhacophorous - flying frog
Salmander
Cryptobranchus
Necturus
Bufo
Ichthyophis
Sharks
Rays
Cuttlefish
Hyla
Bufo
Necturus
Ophisaurus
lizards
rabbits
salmanders
crocodiles
axial skeleton
appendicular skeleton
exoskeleton
visceral skeleton
Gill slits in adults
Long vertebral column
Tail in adults
Teeth in both the jaws
neoteny
paedogensis
paedomorphosis
none of these
Ichthyopsida
Ichthyopsaurus
Ichthyodactyla
Pterodactyla
have two auricles and one ventricle
have smooth moist skin
have a cloaca
respire by lungs in adult stage
Cryptobranchus - hell blender
Necturus - mud puppy
Uraeotyphlus - blind worm
Alytes - midwife toad
Alytes - midwife toad
Hyla - tree frog
Necturus - mud puppy
Bufo - common toad
larger in size
stronger
larger sound box
vocal sac