Which of the following is not a characteristic feature of insect-pollinated flowers?

Explain pollination by animals with examples in detail.

Which one of the following is not a correct explanation of cross-pollination?

Pollination occurs in ...........

Choose the correct statements 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?