How is the stem of the plants that grows horizontally?

How does the stem help the plant?

How does a stem help the plant?

How does the stem help the plant get nutrients??

Are the stems off all plants similar?

If we observed potted explant growing horizontally on ground for some days. What will be the correct diagram given below.

Did you see any red spot in the stem or other parts of any of the plants?

In which plant, the underground stem grows horizontally in soil and helps in perennation?

Plant A and B are tendrillar climbers of Liliaceae. Plant A in its leaf exhibits a character of dicot and plant B has underground horizontal modified stem. Plant A and B respectively are

When stem of plant is girdled (ringed) :