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Why does resin appear on trees?

April 26, 2017answer appear Botany Mathematics resin trees

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Why does resin appear on trees?

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It is caused by some kind of mechanical damage such as that made by wood-boring insects. It plugs the hole and, as it contains unpleasant acids it acts as a defence. Resins are mostly produced by coniferous trees and are formed in a special kind of parenchymatous cell.