Why xylem and phloem are called complex tissue?
Complex tissues are those tissues that are composed of more than one type of cells.
Xylem and phloem are called complex tissues because: They are composed of more than one type of cells.
Why are xylem and phloem called complex tissues?
Is xylem and phloem schelenchyma simple tissue or complex tissue.and if permanent tissues are dead thennparenchyma and collenchyma are what living or dead