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denis-greek [22]
3 years ago
13

9. What's the layer of material found at the innermost part of wood? A. Heartwood B. Vascular cambium C. Sapwood D. Cork cambium

Biology
2 answers:
alexgriva [62]3 years ago
4 0
(A.) Heartwood

Heartwood is the inner layer in wood
Paul [167]3 years ago
3 0
It is heartwood. heartwood is made of older dead xylem cells, or cells that transport water throughout the trunk. The dead xylem cells get harder and form heartwood at the center of the tree.
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8 0
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