Cork is obtained from:

What happens to the primary phloem in a stem after secondary growth?

Select the correct statement$(s)$:
$(1)$ Lenticels are absent in woody climbers.
$(2)$ Lenticels are found in most woody trees.
$(3)$ Spring wood is lighter in color and has a lower density.
$(4)$ Sapwood is also known as duramen (heartwood).

Identify the meristems responsible for primary growth and secondary growth from the following list:
$I -$ Cork cambium,$II -$ Apical meristem,$III -$ Vascular cambium,$IV -$ Intercalary meristem,$V -$ Lateral meristem
Choose the correct option for primary growth and secondary growth respectively.

$A$. Heartwood is durable,dark,and central in position.
$B$. Tyloses are balloon-like structures of xylem parenchyma in vessel lumen.
$C$. Late wood is formed during spring season.

The feature which is common to both heartwood and sapwood is