Subsidiary cells of stomata are modifications of $..........$.

If the ......$X$.... of the lamina reach up to the ... $Y$... breaking it into a number of ......$Z$...... the leaf is called compound leaf.

In walnut,stomata are found on

In $Ficus$ $(Rubber\,\, plant)$,the young leaves are protected by reddish structures called bud scales. These are:

Assertion: Stomata are absent in submerged hydrophytes.
Reason: Respiration occurs by means of air chambers in submerged plants.

In.........,the leaflets are attached at a common point.