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why are xylem and phloem called complex tissues how are they different from one another why are xylem and phloem called complex tissues how are they different from one another class 9 why are xylem and phloem called complex tissues how are they differentiate each other why are xylem and phloem called complex tissues how are they different from another why are xylem and phloem called complex tissues how are they different from one why are xylem and phloem called complex tissues how are they different from one other (4 points) why are xylem and phloem called complex tissues how are they different from other
