$A$ dicotyledonous plant showing parallel venation is

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

Identify in order, the plants showing alternate, opposite, and whorled phyllotaxy.

$A$ leaf with more stomata on the lower surface belongs to which type?

Which of the following is a characteristic feature of a simple leaf?

Which of the following is a rootless aquatic plant in which a portion of the leaf forms a tiny sac for trapping insects?