Questions in Internal Structure of Angiospermous Plants

Select	Question
	After the secondary growth the youngest layer of secondary phloem in a dicot stem is located
	Cork is a derivative of
	Lenticels are formed in bark, which are
	Heart wood or duramen is
	One cannot age a tree by its rings if that tree is located in which of the following forests
	Commercial cork is obtained from
	The pores present in the wall of plant's stem i.e., called
	Lenticels are found in
	Secondary growth or increase in diameter is due to
	Which of the following are derived from the secondary meristems