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Sigma KEE - Wood
KB Term: 

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Tissue that comprises the inner trunk of BotanicalTrees. It is often used in constructing Buildings and other Artifacts. Wood is the principal substance making up a tree, and is distinguished from the bark, roots, flowers, seeds, fruit and leaves.
Relationships      
Parents 植物物质 BodySubstances that are produced exclusively by Plants.
  身体组织 An aggregation of similarly specialized Cells and the associated intercellular substance. Tissues are relatively non-localized in comparison to BodyParts, Organs or Organ components. The main features of Tissues are self-connectivity (see SelfConnectedObject) and being a homogeneous mass (all parts in the same granularity are instances of Tissue as well).


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