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A tree typically has many secondary branches supported clear of the ground by the trunk. This trunk typically contains woody tissue for strength, and vascular tissue to carry materials from one part of the tree to another.
20111014 is a tree.
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20110113
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20111012
This content is published under the Attribution 3.0 Unported license.
20111011
This content is published under the Attribution 3.0 Unported license.