The entry of the pollen tube into the ovule through the micropyle is called .....

The transfer of pollen grains from the anther to the stigma of another flower of the same plant is called .....

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:

Pollination in water hyacinth and water lily is brought about by the agency of

In which characters do air-pollinated flowers differ from insect-pollinated ones?

This is the only type of pollination which,during pollination,brings genetically different types of pollen grains to the stigma.