Many professors and the like say the internal wood tissue is dead.
So if a plant or plant material dies it decomposes. The decomposed material provides nutrients but doesn't offer much more. It offers no storage of nutrients, no structural integrity or the growth of parenchyma cells, just to name a few things.
The Internal wood of a tree is NOT dead. It offers storage, structural integrity and does not decompose unless through an injury.
So what do we call this wood? Zombie-wood? NO... well maybe.
The name of this internal wood is Heartwood.
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