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 |
 52%
Level 3: 35%-60%
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