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Q. No.Consider the given two statements:
Assertion (A):
Frogs have the capability to change the colour and resemble their surroundings.
Reason (R):
They are poikilothermous animals.
1.
(A) is True but (R) is False
2.
Both (A) and (R) are True but (R) does not correctly explain (A)
3.
Both (A) and (R) are True and (R) correctly explains (A)
4.
(A) is False but (R) is True
Subtopic: Frogs | Frogs: Morphology |
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The terms for ‘summer sleep’ and ‘winter sleep’ seen in frogs respectively are:
| 1. | Aestivation and Hibernation |
| 2. | Hibernation and Aestivation |
| 3. | Diapause and Cryptobiosis |
| 4. | Cryptobiosis and Diapause |
Subtopic: Frogs |
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
| Assertion (A): | The skin of a frog is always kept moist and has a mucus covering. |
| Reason (R): | Frogs respire through the skin as well. |
In the light of the above statements choose the correct answer from the options given below:
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Frogs: Morphology | Frogs: Anatomy (Respiratory System) |
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Frog, when on land, uses which of the following as its respiratory organs?
| I: | The buccal cavity |
| II: | Skin |
| III: | Lungs |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
Subtopic: Cockroach: Respiratory System |
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The most common species of frog found in India is:
| 1. | Rana temporaria | 2. | Rana tigrina |
| 3. | Bufo bufo | 4. | Bufo melanostictus |
Subtopic: Frogs |
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
In the light of the above statements choose the correct answer from the options given below:
| Assertion (A): | Rana tigrina is cold-blooded or poikilotherm. |
| Reason (R): | Its body temperature varies with the temperature of the environment. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Frogs: Morphology |
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In Rana tigrina:
| Statement I: | The colour of dorsal side of body is generally olive green with dark irregular spots. |
| Statement II: | On the ventral side, the skin is uniformly pale yellow. |
| 1. | Statement I is correct, Statement II is correct |
| 2. | Statement I is incorrect, Statement II is correct |
| 3. | Statement I is correct, Statement II is incorrect |
| 4. | Statement I is incorrect, Statement II is incorrect |
Subtopic: Frogs: Morphology |
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The frog:
| 1. | drinks a lot of water and passes a lot of dilute urine. |
| 2. | drinks only some water and meets its requirements from metabolic water. |
| 3. | drinks only some water and passes a highly concentrated urine |
| 4. | never drinks water but absorbs it through the skin. |
Subtopic: Frogs: Morphology |
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In Rana tigrina:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | Body is divisible into head and trunk. |
| II: | A neck and tail are absent. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Frogs: Morphology |
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Which of the following statements regarding morphology of frog is not true?
| I: | Above the mouth, a pair of nostrils is present. |
| II: | Eyes are bulged and covered by a nictitating membrane that protects them while on land. |
| III: | On either side of eyes, a membranous tympanum (ear) receives sound signals. |
1. Only II
2. Only II and III
3. Only I
4. None, all statements are correct
Subtopic: Frogs: Morphology |
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