In the stem of $Cucurbita$,the vascular bundles are .........

Which of the following is absent in the primary and secondary structure of the stem of $Pinus$?

In a cross-section of a plant organ, the vascular bundles are found to be conjoint, collateral, endarch, and scattered in the ground tissue. Which organ is this?

$A$ student observed the $T.S.$ of a plant organ slide under a microscope. He observed the vascular bundles in the stelar region as conjoint,collateral,and open. Based on these features of the vascular bundle,identify the correct option from below.

What is the common function of the cortex in plants?

Identify $A$ to $E$ in the given diagram of a Dicot stem and choose the correct option.