Which of the following questions concerning the progymnosperms is FALSE?
b. Archaeopteris was a major type.
c. Some contain a eustele.
d. Most were heterosporous.
e. Seed plants are thought to have evolved from plants similar to the progymnosperms.
13. Extinct Gymnosperms; p. 435; moderate; ans: c
Which extinct gymnosperms resembled modern cycads?
14. Living Gymnosperms; pp. 435–437; moderate; ans: d
Which of the following statements about gymnosperms is FALSE?
b. Ovules and seeds are exposed on the surface of sporophylls.
c. The female gametophyte produces several archegonia.
d. The male gametophyte produces several antheridia.
e. The male gametophyte is endosporic.