Question
Write any four differences between Agnatha and Gnathostomata.
✓
Answer
Difference between Agnatha and Gnathostomata:
| Agnatha | Gnathostomata |
| True jaws are absent in them | True jaws present. |
| Paired appendages are absent | Paired appendages are found. |
| Notochord is present till adulthood | The notochord is transformed into the vertebral column. |
| Two semi-circular canals are found in the internal ear | The number of semilunar tubes is three |
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