Give a scientific reason: Grafting is not possible in monocots.

Which of the following is not formed from the procambium?

Which of the following represents the correct sequence of layers from the center towards the periphery in a dicot stem?

The cork cambium, cork and secondary cortex are collectively called:

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:

The narrow layer of thin-walled cells found in dicots (between the phloem and xylem) is known as ..........