why is phloem placed above the xylem?

Asked by ayushmukul | 26th Sep, 2009, 09:23: PM

Expert Answer:

This is not always the case. Usually the stem, phloem is located exterior to the xylem. But phloem in the leaf is located below the xylem. In certain cases like stem of Yucca, the phloem is surrounded by the xylem.

Answered by  | 30th Sep, 2009, 10:31: AM

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