The main difference between Gymnophiona (Apoda) and Urodela is that urodela
have two auricles and one ventricle
have smooth moist skin
have a cloaca
respire by lungs in adult stage
Correct Answer :
D. respire by lungs in adult stage
Related Questions
A frog lives in water or near water becuase
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
Hepatic portal system of frog is a part of its
blood circulation in the body.
venous system
arterial system
all of these
The male is smaller and lacks vocal sacs in
Alytes - midwife toad
Hyla - tree frog
Necturus - mud puppy
Bufo - common toad
Lateral line system found in fishes has been lost in Amphibia becuase of
development of sturdy eggs
change over to herbivorous feeding
occurence of metamoophosis on amphibia
evolution of terrestrial habit
The toad skin is
dry
scaly
moist
both (a) and (c)
Equal sized feeble limbs are seen in
Hyla
Bufo
Necturus
Ophisaurus
Parts of middle ear of frog are
tympanic membrane and tympanic cavity
middle ear ossicle
eustachian tube
all of these
Persistence of larval condition is known as
neoteny
paedogensis
paedomorphosis
none of these
Tailless amphibians are included in order
Apoda
Caudata
Anura
Cyclostomata
When compared to the frog, the toad is
more terrestrial
more aquatic
more aerial
none of these
Nostrils are not connected with mouth cavity in
frogs
fishes
lizards
pigeons
If the mouth of a frog is kept open for some time, it dies because it is unable to
feed
breathe
drink water
none of these
The flying frog is
Hyla
Bufo
Rhacophorus
Rana
Male frogs can croak louder than females becuase of being
larger in size
stronger
larger sound box
vocal sac
Which of these lives in water permanently?
Frogs
Salamander
Ichthyophis
Necturus
Water dog is
Necturus
Pipa
Amblyostoma
Cryptobranchus
The epidermis in skin of adult frog has
thick and cornified epithelium
poorly cornified stratified squamous epithelium
a simple columnar epithelium
small microscopic scales in it
Erythrocytes of frog are
nucleated and round
enucleated and oval
enucleated and round
nucleated and oval
The bones of the frogs's hindlinbs are part of the
axial skeleton
appendicular skeleton
exoskeleton
visceral skeleton
Which of the amphibian has poison gland in the skin ?
Ram tigrina
Hyla
Rhacophorus
Amphiuma
Frog and toad belong to the order
Anura
Apoda
Urodela
Caudata
A limbless amphibian is
Cryptobranchus - hell blender
Necturus - mud puppy
Uraeotyphlus - blind worm
Alytes - midwife toad
Which one of the following amphibians has no tongue ?
Amphiuma
Ichthyophis
Salamander
Necturus
Both pairs of limbs are equal in size in
toads
frogs
salamanders
lizards
Huxley grouped fishes and amphibians under
Ichthyopsida
Ichthyopsaurus
Ichthyodactyla
Pterodactyla
The fist tetrapods evolved from
Elasmobranch ancestors
Amphioxis like ancestors
Crosspterygian ancestors
None of these
Urodale amphibians lack one of these :
Gill slits in adults
Long vertebral column
Tail in adults
Teeth in both the jaws
Cycloid embedded scales are found in
Uraeotyphlus
Triturus
Siren
Amphiuma
Largest Amphibian is
Cryptobranchus - hell bender
Necturus - mud puppy
Amphiuma - congo cell
Rhacophorous - flying frog
Which of the following parts is shortest in the alimentary canal of frog ?
Oesophagus
Rectum
Duodenum
Intestine