How many of the given statements are correct?
I. Cartilaginous fishes have cycloid or ctenoid scales.
II. An air bladder is present in bony fishes.
III. Amphibians have three-chambered heart.
IV. Reptiles have dermal scales.
V. Birds are warm-blooded.
1. 2
2. 3
3. 4
4. 5
Subtopic:  Comparative study of Cartilagenous & Bony Fishes | Study of Amphibians | Study of Reptilia | Study of Aves & Mammals |
Level 3: 35%-60%
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Chondrichthyes and Mammals:
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 |
 51%
Level 3: 35%-60%
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What will you look for to identity the sex of the following? Select the correct match.

1. Male frog – a copulatory pad on the first digit of the hind limb
2. Female cockroach – anal cerci
3. Male shark – claspers borne on pelvic fins
4. Female Ascaris – sharply curved posterior end
Subtopic:  Comparative study of Cartilagenous & Bony Fishes | Class Chondrichthyes |
 60%
Level 2: 60%+
AIPMT - 2011
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