Where $a,\ b$ and $c$ are values and $a \neq 0$. Discriminant is given by formula. If $b^{2} - 4ac > 0$ we get two solutions of real numbers. If $b^{2} - 4ac$ = $0$ we get one solution which is a real number. If $b^{2} - 4ac < 0$ we get two solutions of rots of imaginary numbers.
Seed Plants. The sporophyte is also the dominant generation in seed plants. Seed plants are vascular plants that produce seeds and include some nonflowering plants (like pine trees) and flowering plants (like oak trees and roses). So when you see any of these plants, you are looking at the sporophyte. sporophyte is a multicellular diploid generation found in plants and algae that undergo alternation of generations. It produces haploid spores that develop into a gametophyte.
Unlike most algae, land plants have a multicellular jacket for protecting the reproductive cells. BRYOPHYTES: liverworts, hornworts, mosses; 23,000 modern species. Spores of bryophytic plants represent the first known land plants from the Middle Ordovician.Bryophytic and vascular plants are found together in an Early Devonian hot spring environment (Park, 2007).lthough most ferns reproduce using spores, one group evolved seeds although they were not ancestral to other seed plants. Fern leaves possess a highly branched vascular system. Some ferns in. have leaves that are 6-9 m long and probably the most complex leaves in the plant kingdom.