What is the purpose of bark on trees?

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    Bark protects a tree from the elements, it can be compared to skin on a human. When bark is removed a tree could die. Bark protects phloem, the inner layer which is a source of energy and which is essential to the tree’s life. The phloem carries the food produced by the leaves and roots to the rest of the tree. Each type of tree has a different purpose for its bark. For instance, the bark of the Eucalyptus tree serves the purpose of protecting the tree from fire. 

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