In angiosperms, microsporogenesis and mega­ sporogenesis

Stalk with which ovules attached to the placenta is called

The megaspore mother cell divides meiotically to form ……. megaspores.

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

Synergids are which type ?