telecom - (often plural) systems used in transmitting messages over a distance electronically. telecommunication. sampling - measurement at regular intervals of the amplitude of a varying waveform (in order to convert it to digital form)
The cells in vascular tissue are typically long and slender. Since the xylem and phloem function in the conduction of water, minerals, and nutrients throughout the plant, it is not surprising that their form should be similar to pipes.
Xylem and phloem, the two conducting tissues of the plant vascular system, are of tremendous fundamental interest and economic importance. Xylem is the water-conducting tissue, and secondary xylem provides the raw material for the forest products industry.he growth of secondary xylem and phloem depends on the division of cells in the vascular cambium and results in an increase in the diameter of the root and stem.