In $Ficus$ (Peepal),pollination is effected by:

$A$ close relation between flower and pollinating agent is best exhibited by

Pollination in Ophrys (a Mediterranean orchid) occurs by

In which of the following plants does seed formation occur even in the absence of pollinators?

Given below are two statements:
Statement $I$: Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it.
Statement $II$: Fig wasp and fig tree exhibit mutual relationship as fig wasp completes its life cycle in fig fruit and fig fruit gets pollinated by fig wasp.
In the light of the above statements,choose the most appropriate answer from the options given below:

How many of the following plants are pollinated by wind?
$Vallisneria$,$Eichhornia$ (Water Hyacinth),$Hydrilla$,Water Lily