Why are xylem vessels Dead?

Related questions

1. How xylem vessels are formed?
2. Do Pteridophytes have vessels?
3. Do gymnosperms have xylem vessels?
4. Does xylem have chloroplasts?
5. What is formed by a group of xylem vessels?
6. How are xylem vessels arranged?
7. How are xylem vessels arranged in dicot root?
8. How is the xylem formed?
9. What does the vascular cambium do?
10. How are the features of xylem vessels linked to their function?

Tags

1. #strengthened
2. #xylem
3. #changes
4. #phloem
5. #lignified
6. #system
7. #plant
8. #water
9. #withstand
10. #pressure
11. #called
12. #hollowed
13. #substance
14. #cells
15. #tissue
16. #lignin
17. #moves
18. #consisting
19. #walls
20. #allows
21. #pipes
22. #through