The egg apparatus consists of $.......$

The nucellus is present in which of the following?

Which of the following ovules has a horseshoe-shaped embryo sac,and the funicle and micropyle are close to each other?

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 $ \dots $ arises from the placenta which is present inside the ovarian cavity.

The female gametophyte of an angiosperm is generally: