Given below is the diagram of a stomatal apparatus. In which of the following, all the four parts labelled as A, B, C and D are correctly identified:

 

	A	B	C	D
1.	Guard cell	Stomatal aperture	Subsidiary Cell	Epidermal Cell
2.	Epidermal Cell	Guard Cell	Stomatal aperture	Subsidiary cell
3.	Epidermal Cell	Subsidiary Cell	Stomatal aperture	Guard Cell
4.	Subsidiary Cell	Epidermal Cell	Guard Cell	Stomatal aperture

The entrance of minerals into the vascular cylinder in the dicot root is regulated by:

Select the correct pair.
1. Cells of medullary rays that form part of a cambial ring - Interfascicular cambium
2. Loose parenchyma cells rupturing the epidermis and forming a lens-shaped opening in the bark - Spongy parenchyma
3. Large colorless empty cells in the epidermis of grass leaves - Subsidiary cells
4. In dicot leaves, vascular bundles are surrounded by large thick-walled cells - Conjunctive tissue

Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following :
1. Tyloses in vessels
2. Closure of stomata
3. Flaccidity of bulliform cells
4. Shrinkage of air spaces in spongy mesophyll

The given diagram shows the transverse section of a portion of a:

In the given diagram of a dicot root, the highlighted blue portion:

I. is the endodermis and is included in the stele
II. is the pericycle and is included in the stele
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect

Consider the given statements:
I. In dicot roots, the pericycle strengthens the roots and provides protection for the vascular bundles.
II. In dicot root, the vascular cambium is completely secondary in origin, and it originates from a portion of pericycle tissue.
III. The pericycle regulates the formation of lateral roots by rapidly dividing near the xylem elements of the root.
The correct statements are:

Identify the incorrect comparison between monocots and dicots in general: