| (a) It does not help in water conduction. |
| (b) It is also called alburnum. |
| (c) If is dark in colour but very soft. |
| (d) It has tracheary elements, which are filled with tannin, resin, etc. |
A) B, C and D
B) A and D
C) B and D
D) A, B and C
Correct Answer: B
Solution :
Heart wood is also called duramen. It represents the central wood of the plant. It is dark in colour and heavier in weight. Living cells are absent. It represents non-functional part of the secondary xylem (wood).
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