Questions in Internal Structure of Angiospermous Plants

Select	Question
	The xylem which is functional in a dicot tree is
	External protective tissues of plants are (of dicot stem are)
	Cork cambium is a
	The cambium which produces cork is known as
	In which of the following, there is no differentiation of bark, sap wood and heart wood
	Growth rings (annual rings) are formed by activity of
	An example of monocots showing secondary growth in stems is
	In dicot stem secondary growth is due to the activity of
	Tissue present in an annual ring is
	Normal secondary growth occurs in