Which of the following is known as wood
Primary xylem
Secondary xylem
Secondary phloem
Cambium
In a stem which is covered by periderm and in which stomata are absent, gaseous exchange takes place through
In the primary tissues of the stem, the cambium separating xylem and phloem is called
Growth rings determine
Arrange the following in the sequence you would find them in a plant starting from the periphery-phellem, phellogen, phelloderm.
Periderm is made up of