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Q. No.In cartilaginous fishes:
I:
Males bear claspers on pelvic fins.
II:
Viviparity is never seen.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Comparative study of Cartilagenous & Bony Fishes | Class Chondrichthyes |
78%
From NCERT
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How many of the given statements regarding mammals are correct?
| I: | The skin of mammals is unique in possessing hair. |
| II: | They are homoiothermous. |
| III: | Different types of teeth are present in the jaw. |
| IV: | External ears or pinnae are absent. |
| V: | The most unique mammalian characteristic is the presence of mammary glands. |
| VI: | Flight has never evolved in any mammal. |
| 1. | 3 | 2. | 4 |
| 3. | 5 | 4. | 6 |
Subtopic: Basis of Classification:I | Study of Aves & Mammals |
77%
From NCERT
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Subtopic: Basis of Classification |
77%
From NCERT
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What would be true [T] or false [F] regarding amphibians?
| I: | Skin is moist and without scales. |
| II: | Eyes have eyelids. |
| III: | A tympanum represents the ear. |
| IV: | Respiration is by gills, lungs and through skin. |
| I | II | III | IV | |
| 1. | T | T | F | F |
| 2. | F | F | F | T |
| 3. | T | F | T | T |
| 4. | T | T | T | T |
Subtopic: Study of Amphibians |
83%
From NCERT
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Consider the two statements:
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
| Statement I: | Chondrichthyes lack the capacity to regulate their body temperature. |
| Statement II: | Osteichthyes have the capacity to regulate their body temperature. |
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: Comparative study of Cartilagenous & Bony Fishes | Class Chondrichthyes | Class Osteichthyes |
71%
From NCERT
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Select the correct description of the two figures A and B, given below, showing basic body forms in Cnidarians:
| A |  |
| B |  |
| 1. | A is Medusa and is free-swimming; B is Polyp and is sessile |
| 2. | A is Polyp and is free-swimming; B is Medusa and is sessile |
| 3. | A is Medusa and is sessile; B is Polyp and is free-swimming |
| 4. | A is Medusa and is free-swimming; B is Polyp and is free-swimming |
Subtopic: Phylum Coelenterata |
87%
From NCERT
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Fertilisation is external and development is indirect in:
1. I and V only
2. II, III and IV only
3. IV only
4. I, IV and V only
| I: | Sponges |
| II: | Echinoderms |
| III: | Hemichordates |
| IV: | Comb jellies |
| V: | Flatworms |
1. I and V only
2. II, III and IV only
3. IV only
4. I, IV and V only
Subtopic: Basis of Classification |
73%
From NCERT
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Chondrichthyes and Mammals:
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: | do not belong to the same class but belong to the same super-class. |
| II: | are placed under the same division in sub-phylum vertebrata. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Comparative study of Cartilagenous & Bony Fishes | Class Chondrichthyes |
53%
From NCERT
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Ascidia, Salpa, Doliolum and Branchiostoma are all:
A: Chordates
B: Vertebrates
C: Urochordates
D: Protochordates
A: Chordates
B: Vertebrates
C: Urochordates
D: Protochordates
| 1. | A and B are correct | 2. | A and C are correct |
| 3. | A and D are correct | 4. | B and C are correct |
Subtopic: Phylum Chordata |
65%
From NCERT
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The figure shows cross-section of the body of an animal. This animal:
1. Only I, II and III are correct
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
| I: | lacks a coelom |
| II: | is triploblastic |
| III: | is expected to have bilateral symmetry |
| IV: | is expected to be dorso-ventrally flattened |
1. Only I, II and III are correct
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
Subtopic: Basis of Classification |
57%
From NCERT
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