Stem and its modifications

A stem is an ascending aerial negatively geotropic part of a plant. Identify which of following statement is correct regarding stem and its modification

The structure which contain vascular bundle and is modification of stem is

Select the characters not associated with the hydrophyte which shows root, stem and leaf modification.

modification OF stem

Root modification is

Select an incorrect statement wrt modifications of stem

Cell Envelope And Its Modifications

Structure Of Bacteria|Cell Envelope|Cell Membrane And Its Modification