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Q. No.

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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Level 1: 80%+
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The correct taxonomic position of Rana tigrina would be:
I: Phylum Chordata
II: Subphylum Vertebrata
III: Superclass Gnathostomata
IV: Class Tetrapoda
 
1. I and II only 2. III and IV only
3. I and III only 4. II and IV only
Subtopic:  Frogs |
 78%
Level 2: 60%+
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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 |
 85%
Level 1: 80%+
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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 |
 98%
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Frogs are beneficial for mankind because:
1. they are an important source of food all over the world.
2. toxins derived from them can cure many human ailments.
3. while burrowing, they loosen soil in arid environments making the soil highly fertile.
4. they eat insects and protect the crop.
Subtopic:  Frogs | How Frogs are Beneficial for Mankind? |
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Frogs:
I: have a constant body temperature and are warm blooded.
II: have the ability to change the colour to hide them from their enemies (camouflage).
III: are not seen during peak summer and winter.
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic:  Frogs |
 86%
Level 1: 80%+
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Consider the given two statements:
Assertion (A): The gastro-intestinal tract of Rana tigrina is short in length.
Reason (R): Rana tigrina is a carnivore.
 
1. Both (A) and (R) are True and (R) correctly explains (A)
2. Both (A) and (R) are True but (R) does not correctly explain (A).
3. (A) is True; (R) is False
4. Both (A) and (R) are False
Subtopic:  Frogs |
 89%
Level 1: 80%+
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Consider the given two statements:
Assertion (A): Many environmental scientists believe amphibians, including frogs, are good biological indicators of broader ecosystem health.
Reason (R): These organisms have intermediate positions in food chains, have permeable skins, and typically have biphasic lives (aquatic larvae and terrestrial adults).
 
1. (A) is True but (R) is False
2. Both (A) and (R) are True and (R) explains (A)
3. (A) is False but (R) is True
4. Both (A) and (R) are True but (R) does not explain (A)
Subtopic:  Frogs | Frogs: Morphology |
 84%
Level 1: 80%+
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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): Frogs are at their most vulnerable to predators when they are undergoing metamorphosis.
Reason (R): At this time, the tail is being lost and locomotion by means of limbs is only just becoming established.
 
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. (A) is False but (R) is True.
Subtopic:  Frogs | Frogs: Morphology |
 72%
Level 2: 60%+
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What is correct regarding the skin of frog [Rana tigrina]?
1. It is dry with scales.
2. The colour of ventral side of body is generally olive green with dark irregular spots.
3. On the dorsal side the skin is uniformly pale yellow.
4. The frog never drinks water but absorbs it through the skin.
Subtopic:  Frogs |
 91%
Level 1: 80%+
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