Resin canals are:

Of the following,which is a false character with respect to $Pinus$?

Consider the following statements regarding gymnosperms and choose the correct option.
$I.$ In gymnosperms,the male and female gametophytes have an independent existence.
$II.$ The multicellular female gametophyte is retained within the megasporangium.
$III.$ The gymnosperms are heterosporous.
Of these statements:

In which of the following groups would you place a plant that produces seeds but lacks flowers and fruits?

$A$: The scale leaves of $Araucaria$ are small and brown.
$R$: The gametophytic phase of $Araucaria$ is long-lived and subterranean.

The microsporophylls of $Pinus$ have: