Which of the following parts is shortest in the alimentary canal of frog ?
Oesophagus
Rectum
Duodenum
Intestine
Correct Answer :
A. Oesophagus
Related Questions
Which of the following has adhesive pad on its fingers and toes ?
Hyla
Necturus
Rhacophorus
Ophisaurus
In which of these, the larva closely resembles the adult ?
Frog
Necturus
Toad
Hyla
When compared to the frog, the toad is
more terrestrial
more aquatic
more aerial
none of these
In frog, the fore- and hindlimbs are derived from
a single body segment each
a multiple number of body segments each
a single and from multiple segments respectively
none of these
Hepatic portal system of frog is a part of its
blood circulation in the body.
venous system
arterial system
all of these
The croking of frog serves to
ward off their enemies
attract the opposite sex
identify the same species
collect the young ones
The fist tetrapods evolved from
Elasmobranch ancestors
Amphioxis like ancestors
Crosspterygian ancestors
None of these
Fire bellied toad is
Salamandar
Discoglossus
Necturus
Amphiuma
Persistence of larval condition is known as
neoteny
paedogensis
paedomorphosis
none of these
Which of the following is false regarding amphibian reproduction ?
Oviparous
Eggs non-mosaic
fertilisation external
Cleavage-meroblastic
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
The skull of frog has
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
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
External gills persist all through the life of
Salmander
Cryptobranchus
Necturus
Bufo
Frog and toad belong to the order
Anura
Apoda
Urodela
Caudata
Which of the amphibian has poison gland in the skin ?
Ram tigrina
Hyla
Rhacophorus
Amphiuma
Which one of the following amphibians has no tongue ?
Amphiuma
Ichthyophis
Salamander
Necturus
The smallest number of vertebrae in its vertebral column is possessed by
Sparrow
Hyla
Mouse
Bufo
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
Centrum, pre- and post-zygapophsis, transverse process are parts of
skull of frog
vertebrae of frog
sternum of frog
pelvis of frog
Which of the following is a false statement for the members of the order Apoda?
They have middle ear apparatus
They show parental cafe
They lose tail and gills during metamorphosis
All of these
Claws are absent in
lizards
rabbits
salmanders
crocodiles
The scientific name of a snake like amphibian is
Hyla
Uraeotyphlus
Ophisaurus
Discoglossus
Cycloid embedded scales are found in
Uraeotyphlus
Triturus
Siren
Amphiuma
Male frogs can croak louder than females becuase of being
larger in size
stronger
larger sound box
vocal sac
Equal sized feeble limbs are seen in
Hyla
Bufo
Necturus
Ophisaurus
Largest Amphibian is
Cryptobranchus - hell bender
Necturus - mud puppy
Amphiuma - congo cell
Rhacophorous - flying frog
Nostrils are not connected with mouth cavity in
frogs
fishes
lizards
pigeons
The toad skin is
dry
scaly
moist
both (a) and (c)