19. Within the plant root, ions accumulate in the ………….. and water tends to enter by osmosis pushing xylem sap upward ahead of it. This is called root pressure.
A) endodermis
B) phloem
C) xylem
D) pith
E) cortex
xylem
الاجابة صح ولا المفروض يكون b)phloem؟؟