The heterosporous nature of Selaginella is considered an evolutionary advancement because it:
Leads to the development of seeds
Increases the number of spores produced
Allows for asexual reproduction
Simplifies the gametophyte generation
Related Questions
Which unique characteristic differentiates the phloem sieve tubes of angiosperms from those of gymnosperms?
Presence of companion cells
Presence of sieve plates
Transport of sugars
Bidirectional translocation