A) Quercus suber
B) Quercus incana
C) Quercus ithaburensis
D) All of the above
Correct Answer: A
Solution :
[a] The cork of commerce is obtained from Quercus suber. It is a layer of suberized and dead cells, cut off by a phellogen on the outside of the stem or root of a woody plant. The layer is protective and impervious to gases and water vapour.You need to login to perform this action.
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