Part of the gynoecium which receives the pollen is called

In angiosperms, the following events occur during megasporogenesis and megagametogenesis

$(i)$ Differentiation of megaspore mother cells

$(ii)$ Meiosis of the megaspore mother cell

$(iii)$ Formation of a linear tetrad

$(iv)$ Mitotic division of the functional megaspore

$(v)$ Degeneration of 3 megaspores

$(vi)$ Formation of embryo sac

$(vii)$ Fusion of polar nuclei

The correct sequence is

The role of triple fusion in angiosperms is to produce

In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :

Synergid's filiform apparatus