Question

Many fern gametophytes are hermaphrodites, meaning they can produce both sperm and egg. Why is this necessary for a fern, but not for an angiosperm?

                A.            If one seed colonizes a new habitat, reproduction can occur in later stages.

                B.            The gametophyte can produce multiple types of spores.

                C.            The gametophyte can produce multiple types of seeds.

                D.           If one spore colonizes a new habitat, reproduction can occur in later stages.

                E.            Angiosperm gametes are diploid.

Answer 1

Ans.  A. If one seed colonizes a new habitat, reproduction can occur in later stages.

The gametophyte are hermaphrodites in ferns but 'doesnt form for angiosperms, the hermaphrodite developement in ferns a meristem is formed in 2 dimentional plane and give rise to the male antheridia and the female archegonia. The most cells,except the apical and basal cells, will develop into antheridia from the gametophore. The seed colonizes a new hybrid and reproduction can occur in later phase.