Match the following:
| Class | Example |
| a. Cyclostomata | 1. Scoliodon |
| b. Chondrichthyes | 2. Petromyzon |
| c. Osteichthyes | 3. Exocoetus |
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Match the following:
| Class | Example |
| a. Cyclostomata | 1. Scoliodon |
| b. Chondrichthyes | 2. Petromyzon |
| c. Osteichthyes | 3. Exocoetus |