I. The specialised cells present in vicinity of guard cells are known as _A_.
II. Ground tissue of leaves is called _B_.
III. Cuticle is absent in _C_.
IV. _D_ help in preventing water loss due to transpiration.

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A - subsidiary cells
C - stem

B - mesophyll
D - Trichomes

A - subsidiary cells
B - conjuctive tissue

C - root
D - Root hair

answer is B.

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Detailed Solution

A few epidermal cells, in the vicinity of the guard cells become specialised in their shape and size and are known as subsidiary cells.
In leaves, the ground tissue consists of thin-walled chloroplast containing cells and is called mesophyll.
Cuticle is absent in roots.
The trichomes help in preventing water loss due to transpiration.

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