An example of monocots showing secondary growth in stems is

During which season does the plant exhibit maximum growth?

When an old tree grows,which part increases in thickness most rapidly?

What constitutes the cambial ring?

The study of wood is called ...........

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).