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प्रश्न
Distinguish between tracheids and vessels.
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उत्तर
| Tracheids | Vessels |
| 1.They are single celled. | 1.They are made up of row of cells. |
| 2. The end walls remain intact. | 2.The end walls get dissolved and become perforated |
| 3. The walls of tracheids are very thick with a narrow lumen. | 3.The walls of vessels are less thick and they have a wider lumen. |
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