Which of these characteristics is NOT associated with the evolution of heterospory in pteridophytes?

In which of the following pteridophyte pairs do both members exhibit heterospory?

The development of the sporophyte without fertilization from the gametophytic tissue in some pteridophytes like Dryopteris is known as:

In the life cycle of mosses, the spore directly develops into a branched, filamentous structure called:

Which structure represents the first stage of the gametophyte generation in the moss life cycle, developing directly from a germinated spore?

What is the immediate product of spore germination in the moss life cycle?

Which among the following sets of pteridophytes are characterized by the production of two distinct spore types?

The suspensor in Selaginella plays a crucial role in:

In heterosporous pteridophytes, the development of the male gametophyte predominantly occurs:

In pteridophytes spore germinate to give rise to

Which unique characteristic distinguishes the Selaginella stem anatomy from other pteridophytes?