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Question:

Which statement is correct regarding mosses?

Their antherozoids are multiflagellated.

They have dominant and independent sporophyte.

Their antherozoids require water for fertilization.

Their archegonia produce many eggs.

Solution:

In mosses the sporophytes (i.e. the diploid body) are short-lived and dependent on the gametophyte. In the presence of water, sperms from the antheridia swim to the archegonia and fertilization occurs, leading to the production of a diploid sporophyte. The sperm of mosses is biflagellate, i.e. they have two flagella that aid in propulsion. Since the sperms must swim to the archegonium, fertilization cannot occur without water.