Question

Before entering into the xylem how many layer the wter has to pass through

Answer 1

EPIDERMIS
then to 
CORTEX
then to 
ENDODERMIS
then to 
PERICYCLE
then to 

THEN TO XYLEM


SO in total its just 4 layers.....

Answer 2

Hi friend following process are
First water comes into the contact of roots.
& then water goes in shoots and other parts of the plant and then after it comes in the contact of leaves. and then the process of xylem & phloem become start.


it will help
mark as brain list.