Identify the wrong statement in context of heartwood.
Identify the correct statements:
$A$. Lenticels are the lens-shaped openings permitting the exchange of gases.
$B$. Bark formed early in the season is called hard bark.
$C$. Bark is a technical term that refers to all tissues exterior to vascular cambium.
$D$. Bark refers to periderm and secondary phloem.
$E$. Phellogen is single-layered in thickness.
Choose the correct answer from the options given below:
Cork tissue arises from
In a stem which is covered by periderm and in which stomata are absent, gaseous exchange takes place through
Lenticles are formed due to rupture in epidermis because of pressure exerted by