When leaves fall individually at different times,it is called:

$A$-Leaves originate from shoot apical meristem and are arranged in an acropetal order.
$R$-They are the most important vegetative organ for photosynthesis.

$A$ monocot plant that exhibits reticulate venation is:

In plants like $Nymphaea$,which is an attached emerged hydrophyte,the stomata are present on:

In $1/2$ distichous phyllotaxy:

Describe the modification of leaves for specific functions with examples.