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प्रश्न
How do chordates differ from non-chordates?
फरक स्पष्ट करा
उत्तर
| CHORDATES | NON-CHORDATES |
| Notochord is found in all stages of the life-cycle | Notochord is not found in any stages of the life-cycle. |
| Heart is situated on ventral side of the alimentary canal. | Heart is poorly formed and if present it is situated on the dorsal side. |
| Nervous system is situated on the dorsal side | Nervous system is situated on the ventral side. |
| RBCs are present in blood. | RBCs are absent in blood. |
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