Answer: All is their characteristics.
They have stomata, swimming sperm, dessication tolerance and sporophyte and gametophyte generations.
Explanation:
Bryophtes are small,non vascular plants that use water for their reproduction. Examples are missed, liverworts e.t.c. They have no true roots, stems and leaves but they have rhizoids which help in anchorage. The reproduce by spores , hence they have sporophyte and gametophyte generations. The sperms of bryophytes have flagella which help them to swim in water in order to fuse to the egg
Bryophytes have stomata and it is located in the sporangium of sporophyte generation.
Bryophytes have dessication tolerance i.e the ability to lose normal water and recover functions after dehydration. It use use for spores dispersal.
