The recently discovered anti-cancer drug is obtained from:

Which is the smallest gymnosperm among the following?

$A$: Microspores and megaspores are produced in the same lax in gymnosperms.
$R$: Lax represents a compact strobilus which bears microsporophyll and megasporophyll.

The first seeded plants are the

Identify the plant shown in the given figure.

The male gametes of $Cycas$,which are the largest in the plant kingdom,are .....