Characteristics of wind-pollinated pollen grains are that they are:

The "lever mechanism" for pollination and the "turn-pipe mechanism" are characteristic features of which of the following?

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.

Pollination in water hyacinth $(Eichhornia)$ occurs through which of the following?

Explain the process of pollination in the Mediterranean orchid, $Ophrys$.

The diagram below depicts a flower with: