The synergids are the outgrowths of which of the following?

The ovule represents which stage?

The number of nuclei in a mature embryo sac are

The megasporangium is equivalent to which of the following?

In angiosperms,the functional megaspore of a linear tetrad is the:

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: