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

How many plants among China rose,Ocimum,sunflower,mustard,Alstonia,guava,Calotropis and Nerium (oleander) have opposite phyllotaxy?

Match the columns:

$(i)$ Acicular	$(1)$ Grass
$(ii)$ Linear	$(2)$ Nerium
$(iii)$ Lanceolate	$(3)$ Banana
$(iv)$ Oblong	$(4)$ Pine

Given below are two statements:
Statement-$I$: Leaves originate from shoot apical meristems.
Statement-$II$: Leaves are arranged in acropetal order.
In the light of the above statements,choose the correct answer from the options given below:

Evergreen trees remain green throughout the year on account of

Presence of sheathing leaf base and ligule are characteristic of