Table 1. Gametophytes of mosses, ferns, and flowers. Nonvascular or vascular Vascular Seedless or seed Plants Mosses (Bryophytes) Ferns (Pterophytes) Flowers Male Male Gametophyte Gamete Female Gametophyte Female Gamete Eggs

Ferns are; Sporophyte dominant Gametophyte dominant O Neither

Gametophytes develop into gametes and sporophytes develop into spores.   True   False In mosses and ferns, fertilization, and zygote and embryo formation occur in antheridia.   True   False     Which of the following structures are in an archegonium of a moss?   sterile jacket   venter   neck   spermatogenous cells   Ferns have roots and vascular tissues but mosses don't.   True   False

What would be a more distinct lifestage in seedless vascular plants? Sporophyte or Gametophyte

The rhizome of ferns like the one shown in the previous question, have a dictyostele vascular cylinder.  In your own words, what does this term mean and how does it differ from the protostele seen in the Lycophytes?

Which of the following plant groups has the smallest gametophytes and the largest sporophytes? Mosses and other non-vascular plants gymnosperms Ferns and Fern allies

Draw a single moss plant, similar to the one shown. Be certain to show the gametophyte and the sporophyte. Now draw one without the sporophyte, showing only the gametophyte. The sporophytes usually have only a very brief life, and after they shed their spores, the gametophytes let them die.