In monocot roots,which types of vascular bundles are found?

You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two?

The cell wall of which of the following is thickened with suberin?

Given below are two statements:
Statement $I:$ Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body.
Statement $II:$ Exarch condition is the most common feature of the root system.
In the light of the above statements,choose the correct answer from the options given below:

Dicot roots are distinguished from monocot roots by the presence of:

What is anatomy?