Cortex consists of three sub-zones in dicot stem, they are
$I.$ hypodermis $II.$ cortical layer
$III.$ pericycle $IV.$ endodermis $V.$ epidermis
All except $I$ and $II$
All except $II$ and $III$
All except $IV$ and $V$
All except $III$ and $V$
Cortex and pith are not distinguished in
No secondary growth occurs in monocot stem because
Which of the following is not true for the vascular bundles of monocotyledonous stems?
In monocot stem, following is absent