Mesogamy is the process in which:

The movement of the pollen tube is called:

When the pollen tube enters the embryo sac,it enters through the ..... cells.

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

The diagram shows the entry of a pollen tube into the embryo sac. Identify $A$ to $G$ in the diagram.

Identify the correct order of events in pollen-pistil interaction from the options given below.
$I.$ Release of male gametes into the embryo sac
$II.$ Deposition of pollen grains on stigma
$III.$ Entry of pollen tube into embryo sac
$IV.$ Development of pollen tube
$V.$ Entry of pollen tube into the ovule