- 1(current)
Q. No.A shark is characterized by
| 1. | placoid scales |
| 2. | bony skeleton |
| 3. | water vascular system |
| 4. | muscular diaphragm |
Subtopic: Â Comparative study of Cartilagenous & Bony Fishes |Â Class Chondrichthyes |
 79%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Match the following columns and select the correct option.
| Column I | Column II | ||
| (a) | 6 - 15 pairs of gill slits | (i) | Trygon |
| (b) | Heterocercal caudal fin | (ii) | Cyclostomes |
| (c) | Air Bladder | (iii) | Chondrichthyes |
| (d) | Poison sting | (iv) | Osteichthyes |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (iv) | (ii) | (iii) | (i) |
| 3. | (i) | (iv) | (iii) | (ii) |
| 4. | (ii) | (iii) | (iv) | (i) |
Subtopic: Â General Introduction: Vertebrates & Agnatha |Â Comparative study of Cartilagenous & Bony Fishes |Â Class Cyclostomata |Â Class Chondrichthyes |Â Class Osteichthyes |
 81%
Level 1: 80%+
NEET - 2020
Hints
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.