ordinary root in animal hemisphere strength throughout the vegetable & catches is a mean of ordinary handkerchief in vascular animal ->  xylem transports materials through the plant  land is a mean of spiritual & a animal / inanimate nothing require land for fold / to grow ->  water is a kind of material that is required for plants' survival  xylem transports materials through the plant & water is a kind of material that is required for plants' survival -> xylem transports water that is required by plants