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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):
All vertebrates are chordates but all chordates are not vertebrates.
Reason (R):
Notochord is replaced by vertebral column in the adult vertebrates.
In the light of the above statements, choose the most appropriate answer from the options given below:
1.
(A) is false, (R) is true.
2.
Both (A) and (R) are true and (R) correctly explains (A).
3.
Both (A) and (R) are true and (R) does not correctly explain (A).
4.
(A) is true, (R) is false.
Subtopic: Phylum Chordata |
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In which of the following animals, the digestive tract has additional chambers like crop and gizzard?
1. Pavo, Psittacula, Corvus
2. Corvus, Columba, Chameleon
3. Bufo, Balaenoptera, Bangarus
4. Catla, Columba, Crocodilus
1. Pavo, Psittacula, Corvus
2. Corvus, Columba, Chameleon
3. Bufo, Balaenoptera, Bangarus
4. Catla, Columba, Crocodilus
Subtopic: Study of Aves & Mammals |
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Subtopic: Comparative study of Cartilagenous & Bony Fishes |
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Given below are two statements:
| I: | Amphibians and reptiles have a 3-chambered heart with two atria and a single ventricle, and are oviparous in nature |
| II: | Crocodiles possess a 4 chambered heart with two ventricles and two atria and are viviparous in nature |
Select the most appropriate option:
1. I is correct but II is incorrect.
2. I is incorrect but II is correct.
3. Both I and II are correct.
4. Both I and II are incorrect.
Subtopic: Study of Amphibians | Study of Reptilia |
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Which one of the following features are not true for chordates?
(a) Heart is dorsal.
(b) Pharynx is perforated by gill slits.
(c) Central nervous system is ventral, solid and single.
(d) Post-anal tail is present.
(e) Notochord is present.
Choose the most appropriate answer from the option give below:
| 1. | (e) only | 2. | (a), (d) and (c) only |
| 3. | (b) and (c) only | 4. | (a) and (c) only |
Subtopic: Phylum Chordata | Comparative study of Cartilagenous & Bony Fishes |
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Which of the following animals has three chambered heart?
| 1. | Scoliodon | 2. | Hippocampus |
| 3. | Chelone | 4. | Pteropus |
Subtopic: Study of Reptilia |
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Select the incorrect statements with respect to Cyclostomes:
(a) They lack scales and paired fins.
(b) They have circular mouth with Jaws.
(c) They bear 6-15 pairs of gills.
(d) They migrate to deep sea for spawning.
Choose the most appropriate answer from the options given below :
1. (a) and (b) only
2. (b) and (c) only
3. (b) and (d) only
4. (a) and (d) only
(a) They lack scales and paired fins.
(b) They have circular mouth with Jaws.
(c) They bear 6-15 pairs of gills.
(d) They migrate to deep sea for spawning.
Choose the most appropriate answer from the options given below :
1. (a) and (b) only
2. (b) and (c) only
3. (b) and (d) only
4. (a) and (d) only
Subtopic: Super Class Pisces & its General Characteristics |
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Match List I with List II.
Choose the correct answer from the options given below:
| List I | List II | ||
| A. | Taenia | I. | Nephridia |
| B. | Paramoecium | II. | Contractile vacuole |
| C. | Periplaneta | III. | Flame cells |
| D. | Pheretima | IV. | Urecose gland |
| Options: | A | B | C | D |
| 1. | II | I | IV | III |
| 2. | I | II | III | IV |
| 3. | I | II | IV | III |
| 4. | III | II | IV | I |
Subtopic: Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes | Phylum Annelida | Phylum Arthropoda |
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Radial symmetry is NOT found in adults of phylum__________
| 1. | Echinodermata D | 2. | Ctenophora |
| 3. | Hemichordata | 4. | Coelenterata |
Subtopic: Phylum Hemichordata |
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Select the correct statements with reference to chordates.
Choose the correct answer from the options given below:
| A: | Presence of a mid-dorsal, solid and double nerve cord. |
| B: | Presence of closed circulatory system. |
| C: | Presence of paired pharyngeal gill slits |
| D: | Presence of dorsal heart. |
| E: | Triploblastic pseudocoelomate animals. |
| 1. | C, D and E only | 2. | A, C and D only |
| 3. | B and C only | 4. | B, D and E only |
Subtopic: Phylum Chordata |
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