Duramen is present in

Which tissue is more active during the autumn season?

Assertion: In the stem,the pericycle takes an active part in secondary growth.
Reason: In dicots,the pericycle has the capacity to produce lateral roots.

If a nail is driven into the trunk of a mango tree at a height of $2 \ m$ above the ground,what will be the height of the nail after $5$ years?

Cork is used as a stopper for bottles,for shock absorption,and for insulation because of:

Periderm includes