In the stem of barley $(Hordeum \text{ } vulgare)$, the vascular bundles are .......

Describe the internal structure of a sunflower stem.

Assertion : In collateral vascular bundles,phloem is situated towards the inner side.
Reason : In monocot stem,cambium is present.

$A$ 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.

Vascular bundles are scattered in:

Select the correct option$(s)$ from the following statements:
$(i)$ Fibers are thin-walled,elongated,and pointed cells.
$(ii)$ Water-containing cavities (lysigenous cavities) are found in the vascular bundles of monocot stems.