The meristematic tissue responsible for the cutting of vascular tissue $(xylem \;and \;phloem)$ is called
Cork cambium
Vascular cambium
Lateral meristem
Endodermis
Identify $X$ and $Y$
Mark the correct sequence of layers found in root anatomy.
Commercially important fibres of cotton are
Explain the process of secondary growth in stems of woody angiosperm with help of schematic diagrams. What is the significance?