In which plant are the vascular bundles scattered in the ground tissue,and each vascular bundle is surrounded by a sclerenchymatous bundle sheath?

You are given two pieces of old dicot stem and root. Which of the following anatomical features will be useful to distinguish between them?

In monocot stem,vascular bundles are.

Which of the following is not true for the vascular bundles of monocotyledonous stems?

Conjoint collateral vascular bundles and eustele are present 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.