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Question : Hardbast occurs in the stemk of Helianthus, Ricinus and few other plants. This structure represents

Answer»

thin-walled patch of pericycle cells LYING above the PHLOEM
thick-walled patch of pericycle cells lying above the phloem
thick-walled patch of pericycle cells lying above the medullary RAYS
UNUSUALLY thickened cells of phloem

Answer :B


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