What do the following parts of a flower develop into after fertilisation ? $(a)$ Ovary $(b)$ Ovules.
An orthotropous ovule is one in which micropyle and chalaza are
Explain about Embryo sac.
In majority of angiosperms
Identify the labelled part $X, Y$ and $Z$ from the given figure :
$X-Y-Z$
The role of triple fusion in angiosperms is to produce