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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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Important Questions on Structural Organisation in Animals
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Read the following statements and select the option that correctly fills .
The male frog has a special organ on the throat called __ __.
__ __ membrane is a part of the ear and serves to receive sound waves.
R. Dermis of the frog contains sac-like __ __ glands.
The tongue of a frog is __ __.
__ __ respiration takes place in the lungs on land.
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Which of the following statements is correct about the respiration in frog?
(i) In frog, cutaneous and pulmonary respiration are found.
(ii) A pair of elongated pink hollow lungs are found in thorax.
(iii) During aestivation and hibernation, gaseous exchange takes place through skin.
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Fill up the blanks in the following paragraph by selecting the correct option.
The vascular system of the frog is a well-developed __ __ type. The blood vascular system involves the heart, blood vessels, and blood. The heart has 3 chambers, two atria, and one ventricle, and is covered by a membrane called __ __. A triangular structure called __ __ joins the right atrium.
| (i) | open | conus arteriosus | neurilemma |
| (ii) | closed | sinus venosus | pericardium |
| (iii) | open | neurilemma | conus arteriosus |
| (iv) | closed | pericardium | sinus venosus |
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Identify the incorrect statement about frog.
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The hindbrain in frog consists of
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In frog, mesorchium is a thin fold of membrane extending between
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Following are given four statements 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.
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Cloaca is a small, median chamber that is used to pass
