Fern plants. Like all other vascular plants, the diploid sporophyte is the dominant phase or generation in the life cycle. The gametophytes of ferns, however, are very different from those of seed plants. They are free-living and resemble liverworts, whereas those of seed plants develop within the spore wall and are dependent on the parent sporophyte for their nutrition. A fern gametophyte typically consists of: Ferns first appear in the fossil record in the early Carboniferous period. By the Triassic, the first evidence of ferns related to several modern families appeared. The great fern radiation occurred in the late Cretaceous, when
The Greatest Generation The Greatest Generation The Greatest Generation is a book by journalist Tom Brokaw that profiles those who grew up in the United States during the deprivation of the Great Depression, and then went on to fight in World War II, as well as those whose productivity within the war's home front made a decisive material contribution to the war effort. The book popularized the term "Greatest Generation", which some use to describe the G.I. Generation in the United States. Brokaw profiles those who came of age during World War II in the US, stemming from his attendance at the D-Day