The first plants to appear after a forest fire are the ferns. This is because of the survival of their:

Pteridophytes are also known as

In which plant group is the gametophytic phase reduced, haploid, short-lived, and subterranean?

Sporangia are associated with sporophylls. In $P$ plants,sporophylls are distinct,while in $Q$ plants,sporophylls form compact structures called strobili or cones.
$P \quad Q$

Which of the following is a characteristic of $Pteridophytes$?

In pteridophytes,fusion of gametes takes place in