Consider the given two statements:
Assertion (A): Cartilaginous fishes have to swim continuously to avoid sinking
Reason (R): Cartilaginous fishes lack a swim bladder 
 
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 False.

Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
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How many of the given pairs are correctly matched? 
I. Scoliodon - Dog fish 
II. Pristis- Saw Fish 
III. Trygon - Sting ray 
IV. Carcharodon- Blue whale 
1. 1 
2. 2 
3. 3 
4. 4 
Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
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Consider the two statements:
Statement I: Cartilaginous fishes have internal fertilization
Statement II: Many cartilaginous fishes have viviparity
 
1. Statement I is correct and Statement II is incorrect
2. Statement I is incorrect and Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
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Mouth in bony fishes is mostly: 
1. lacking jaws 
2. ventral 
3. terminal 
4. having a radula 
Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
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How many pairs are correctly matched? 
I: Exocoetus-Flying fish 
II: Betta-Fighting fish 
III: Pterophyllum : Angel fish 
1. 0 
2. 1 
2. 2 
4. 3 
Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 74%
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Which of the following will not be true for bony fishes? 
1. Heart is two chambered 
2. Cold blooded animals 
3. Sexes separate but fertilization is usually internal 
4. Mostly oviparous 
Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 91%
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Identify the incorrect statements regarding mammals:
I: External ears are absent 
II: All teeth are of the same type 
III: They are homoiothermous 
1. Only I and II 
2. Only I and III 
3. Only II and III 
4. I, II and III
Subtopic:  Study of Aves & Mammals |
 75%
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Balanoglossus and saccoglossus are: 
1. Urochordates  2. Cephalochordates 
3. Hemichordates  4. Vertebrate chordates 
Subtopic:  Phylum Hemichordata |
 85%
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Consider the two statements:
Statement I: Echinoderms are spiny skinned animals
Statement II: They have an endoskeleton made of calcareous ossicles
 
1. Statement I is correct and Statement II is incorrect
2. Statement I is incorrect and Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
Subtopic:  Phylum Echinodermata |
 75%
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Which of the following are not used in respiration in arthropoda? 
1. Gills 
2. Book lungs 
3. Tracheal system 
4. Malpighian tubules 
Subtopic:  Phylum Arthropoda |
 66%
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