MEDIUM
Earn 100
Read the following statements and select the correct option:
I. The alimentary canal is short in frogs as frogs are herbivores.
II. Alimentary glands are altogether absent in frogs.
III. The mouth opens into the buccal cavity that leads to the oesophagus through pharynx.
IV. Food is captured by the bilobed tongue of frogs.
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Important Questions on Structural Organisation in Animals
HARD
Select the correct route for the passage of sperms in male frogs.
MEDIUM
Assertion (A): During pulmonary respiration in frog, buccopharyngeal cavity acts like a force pump.
Reason (R): When the floor of buccopharyigeal cavity is lowered, air forces the glottis to open and reach the lungs.
The correct option among the following is:
EASY
Poikilothermy due to mixing of pure and impure blood arises in
MEDIUM
In frog, the elimination of nitrogenous wastes is carried out by a well developed excretory system. The excretory system consists of
a. One pair of kidney
b. Ureters
c. Cloaca
d. Urinary bladder
e. Urethra
EASY
Identify the wrong statement:
EASY
The body of frog is divisible into
EASY
Ureters act as urogenital ducts in
EASY
Which of the following statements is incorrect about the frog?
(i) Eyes are bulged out and covered by a nictitating membrane that protects them while in water.
(ii) On either side of the eyes a membranous tympanum (ear) receives sound signals.
(iii) The hind limbs end in four digits and they are larger and muscular than fore limbs that end in five digits.
(iv) Feet have webbed digits that help in swimming.
(v) Frogs exhibit sexual dimorphism.
EASY
Layer of actively dividing cells in skin of frog is termed as stratum
EASY
_______ is absent in frog.
EASY
Which of the following is not observed in Rana tigrina?
MEDIUM
Which of the following is an incorrect statement?
EASY
Closed circulatory system occurs in
EASY
In water, ______ acts as the aquatic respiratory organ of frog.
EASY
Bidder’s canal is found in:
EASY
The forelimbs of frog do not contain:
MEDIUM
Frog respires through ______ during hibernation and aestivation.
EASY
Cotyledons are also called-
EASY
Skin is a respiratory organ in
