In angiosperms,the megaspore develops into:

Which one of the following shows more than one ovule?

Megasporangium is equivalent to

The three cells present at the chalazal end form $.....P......$,and the three cells present at the micropylar end form $.....Q.....$.
$\quad\quad\quad \quad \text { P } \quad\quad\quad \text { Q }$

The megasporangium is attached to the placenta by which structure?

What will be the respective ploidy of the cells of the Nucellus,Megaspore Mother Cell,the functional Megaspore,and the female gametophyte?