Sapwood - The living wood found just outside the heartwood of a tree, Heartwood - The wood in the center of the tree that is no longer living, Cork - Part of the outer bark of a tree, Masting - When an oak tree produces a great number of acorns in one season, Terminal bud - the bud at the top of a twig or branch, Nodes - places on the twig where the buds are located, Lenticels - Pores on a twig that allow it to take in oxygen,

Science vocab chapter 10

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