Which type of pollination has the highest probability of introducing genetic variation?

............. pollination is quite common in grasses.

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

Which plant exhibits 'sexual deceit' in its floral structure for pollination?

Choose the correct sentences regarding pollination.
$(I)$ Majority of flowering plants use a range of animals as pollinating agents.
$(II)$ Among the animals,insects,particularly bees,are the dominant biotic pollinating agents.
$(III)$ Majority of insect-pollinated flowers are large,colourful,fragrant,and rich in nectar.
$(IV)$ The body of the animal gets a coating of pollen grains,which are generally sticky in animal-pollinated flowers.

The pollination by birds is called