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Normally haemopoiesis in frog occurs in

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Important Questions on Phylum Chordata

HARD
Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
Select the correct route for the passage of sperms in male frogs.
MEDIUM
Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog

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:

MEDIUM
Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
The increase in complexity of the vertebrate circulatory system is represented by which of the following combinations?
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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
In water, ______ acts as the aquatic respiratory organ of frog.
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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
Cloaca is a small, median chamber that is used to pass
MEDIUM
Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog

When a Frog's heart is taken out of the body, it continues to beat for sometime because _____.

Select the best option from following statements:

(a) Frog is a poikilotherm.
(b) Frog does not have any coronary circulation.
(c) Heart is "Myogenic" in nature.
(d) Heart is autoexcitable.

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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
In a frog, if a hole is punched in the floor of its buccal cavity, then the frog will not die as
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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
The cloaca of the frog is a common chamber for the urinary tract, reproductive tract and
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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
Poikilothermy due to mixing of pure and impure blood arises in
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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
Identify the incorrect statement about frog.
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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
Following are given four statements (i)-(iv) related to frog. Read the statements carefully and select the option that identifies two correct statements.
(i) The brain is divided into fore-brain, mid-brain and hind-brain.
(ii) Vasa efferentia enter the kidneys on their side and open into Bidder's canal.
(iii) Ear acts as a hearing organ only.
(iv) RBC's are enucleated and contain red coloured pigment namely haemoglobin.
MEDIUM
Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
Select the correct route for the passage of sperms in male frogs.
EASY
Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
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.
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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
In a frog, cloacal aperture is used for the elimination of
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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
Identify the wrong statement:
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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
In frog, mesorchium is a thin fold of membrane extending between
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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
Where is jelly deposited as a covering on the egg of frog?
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Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
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
MEDIUM
Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
Which of the following sets of characters are applicable in metamorphosis of tadpole larva of frog and toads?
EASY
Biology>Animal Diversity-II>Phylum Chordata>Physiology and Anatomy of Frog
The figure given here shows diagrammatic representation of internal organs of frog.
Identify A to E and select the correct option.
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