Which of the following decays rapidly when ex | vedclass

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(B) Sapwood (alburnum) is the peripheral region of the secondary xylem. It consists of living cells and conducting elements that transport water and m

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Sapwood

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(B) Sapwood (alburnum) is the peripheral region of the secondary xylem. It consists of living cells and conducting elements that transport water and minerals. Because it contains living protoplasts and stored food materials like starch,it is highly susceptible to fungal and bacterial attacks. Therefore,when exposed to air or moisture,sapwood decays much more rapidly than heartwood (duramen),which is dead,lignified,and contains tannins,resins,and oils that provide resistance to decay.

Which of the following decays rapidly when exposed to air?

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