Conduction of sap in plants occurs through
Heartwood
Sapwood
Xylem
All the above
(b) Cells of sapwood are alive and because of abundant pore spaces, movement of sap takes place through these tissues.
Growth rings are well marked in trees growing in
The meristematic tissue responsible for the cutting of vascular tissue $(xylem \;and \;phloem)$ is called
The periderm includes
Vascular cambium of dicot root is purely secondary in origin and arise from
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