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Q. No.The correct statements regarding cyclostomes will be:
(a)
All living members of the class Cyclostomata are endoparasites in mammals.
(b)
Cyclostomes have a sucking and circular mouth without jaws.
(c)
Their body is devoid of scales and paired fins.
(d)
Cranium and vertebral column are bony.
1.
Only (a) and (b)
2.
Only (b) and (c)
3.
Only (a) and (d)
4.
Only (c) and (d)
Subtopic: General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
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Level 1: 80%+
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Identify the incorrectly matched pair:
| 1. | Hemichordates | Worm like with proboscis, collar and trunk |
| 2. | Mollusca | External skeleton of shell usually present |
| 3. | Porifera | Body with pores and canals in walls |
| 4. | Arthropoda | Exoskeleton of cellulose and jointed appendages |
Subtopic: Phylum Arthropoda |
87%
Level 1: 80%+
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Tissue level of body organization and absence of organ systems is seen in:
| 1. | Cnidaria and Ctenophora |
| 2. | Porifera and Cnidaria |
| 3. | Aschelminthes and Porifera |
| 4. | Echinodermata and Chordata |
Subtopic: Phylum Coelenterata | Phylum Ctenophora | Basis of Classification |
88%
Level 1: 80%+
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All the following features will be applicable to the animals belonging to Class Reptilia except:
| 1. | They are mostly terrestrial animals and their body is covered by dry and cornified skin, epidermal scales or scutes. |
| 2. | They do not have external ear openings and tympanum represents ear. |
| 3. | Heart is usually four-chambered, but three-chambered in crocodiles. |
| 4. | Fertilisation is internal and development is direct. |
Subtopic: Study of Reptilia |
90%
Level 1: 80%+
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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%
Level 2: 60%+
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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%
Level 2: 60%+
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Subtopic: Basis of Classification |
76%
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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%
Level 1: 80%+
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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%
Level 2: 60%+
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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%
Level 1: 80%+
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