blood circulation in the body.
venous system
arterial system
all of these
B. venous system
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
pronephric kidney
mesonephric kidney
metanephric kidney
both (a) and (b) ,
Oviparous
Eggs non-mosaic
fertilisation external
Cleavage-meroblastic
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
Ram tigrina
Hyla
Rhacophorus
Amphiuma
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
Hyla
Uraeotyphlus
Ophisaurus
Discoglossus
Necturus
Pipa
Amblyostoma
Cryptobranchus
larger in size
stronger
larger sound box
vocal sac
Hyla
Necturus
Rhacophorus
Ophisaurus
Ichthyophis
Sharks
Rays
Cuttlefish
Frogs
Salamander
Ichthyophis
Necturus
Oesophagus
Rectum
Duodenum
Intestine
skull of frog
vertebrae of frog
sternum of frog
pelvis of frog
Salmander
Cryptobranchus
Necturus
Bufo
Apoda
Caudata
Anura
Cyclostomata
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
Alytes - midwife toad
Hyla - tree frog
Necturus - mud puppy
Bufo - common toad
Amphiuma
Ichthyophis
Salamander
Necturus
ward off their enemies
attract the opposite sex
identify the same species
collect the young ones
a single body segment each
a multiple number of body segments each
a single and from multiple segments respectively
none of these
Anura
Apoda
Urodela
Caudata
blood circulation in the body.
venous system
arterial system
all of these
Uraeotyphlus
Triturus
Siren
Amphiuma
have two auricles and one ventricle
have smooth moist skin
have a cloaca
respire by lungs in adult stage
Frog
Necturus
Toad
Hyla
frogs
fishes
lizards
pigeons