Bryophytes can be separated from algae as they possess which of the following?

The archegonia is the female sex organ in bryophytes, and its flask-like shape with a long neck and a bulging venter distinguishes it from other structures. This is one of the primary distinctions between Bryophytes and algae, as algae lack specialised structures such as archegonia and antheridia (the male sex organ in Bryophytes). The presence of these specialised structures in Bryophytes indicates that they have progressed beyond simple, single-celled algae.