Question

In land plants the guard cells differ from each other epidermal cells in having

Answer 1

The guard cell differ from the epidermal cells in the following aspects:

The guard cell are bean-shaped surface , while the epidermal cell are irregular in shape.
The guard cells contain chloroplasts , so they can manufacturer food by photosynthesis ( the epidermal cells do not contain chloroplasts )

Answer 2

same here ......... SAME