Question
Distinguish between Chordates and Non-Chordates.
| S.No. | Chordates | Non-Chordates |
| 1. | Notochord is present atleast in some stages of development. | Notochord is absent. |
| 2. | Central nervous system is dorsal, hollow, single and non-ganglionated. | Central nervous system is ventral, solid, double and gangliolated |
| 3. | Gill slits present on lateral side of pharynx in sum stages or throughout the life. | Gill slits are absent. |
| 4. | Tail is present in some stages and throughout the life. | Tail is generally absent. |
| 5. | Heart is ventral. | Heart is dorsal. |
| 6. | Haemoglobin is present in RBCs. | It is present in plasma. |
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