Name the plant having reticulate venation.

In some plants like Cotton and Eucalyptus,leaves change their shape. This phenomenon is known as heterophylly and it helps to determine the:

Where are hydathodes (water stomata) found?

The bladder of $Utricularia$ and pitchers of $Nepenthes$ are modifications of

Assertion : $A$ simple leaf has undivided lamina.
Reason : Leaves showing pinnate and palmate venation have various types of incisions.

In $Nepenthes$,the pitcher is a modification of which part of the leaf?