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Q. No.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) |
69%
From NCERT
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Frogs respire on land and in water by two different methods:
| Statement I: | In water, skin acts as aquatic respiratory organ (cutaneous respiration). |
| Statement II: | On land, the buccal cavity, skin and lungs act as the respiratory organs. |
| 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: Anatomy (Respiratory System) |
88%
From NCERT
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During aestivation and hibernation, gaseous exchange in frogs takes place:
1. across alveoli in the lungs.
2. through the moist buccal mucosa.
3. in gills.
4. through skin.
1. across alveoli in the lungs.
2. through the moist buccal mucosa.
3. in gills.
4. through skin.
Subtopic: Frogs: Anatomy (Respiratory System) |
95%
From NCERT
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