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The following plants are heterosporous except
mosses
monocots
cycads
dicots
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- What is sporophyll? A strobilus? Sporophyll Strobilus megasporeWhen the hyphae of two compatible club mushrooms (Basidiomycota) fuse, the result is hyphae that is; Diploid N + N Соenocytic Нaploidacrial sporophyte collumella hydroids alternation of generation antheridium lеptoid liverworts perine layer pscudo-claters rhizoids cuticle hornworts elaters intercalary sporophyte mosses leafy gametophyte archegonium oil bodies gemmae stomates 18 19 20 14 11 10 13 12 16 15 5. 4
- The following belong to the sporophyte generation exceptmicrosporesseedsnucellusembryoThe following structures are found on the underside of fern leaves and contain sporangia: sori rhizomes megaphylls microphyllsThe photo below is a longitudinal section (I.s.) of the strobilus of Selaginella at 40x. How does this photo illustrate the importance of the previous question?
- While the Lycopodiaceae are homosporous, the Selaginellaceae are heterosporous, producing two types of spores, microspores and megaspores. The strobili of Selaginella. consist of microsporophylls and megasporophylls, bearing microsporangia with microspores and megasporangia with megaspores, respectively. Examine the prepared slide of a mature Selaginella strobilus and identify the two spore types (see text Figure 17-19, pages 406 and 407). 4. Label the microspores and megaspores in Figure 3 below. Figure 3. Selaginella strobilus l.s. Photo by Carolyn Alling 5. What type of gametophyte does the microspore give rise to? The megaspore? ons TealMention any two differences of Riccia and Funaria with reference toSporophyteOne of the genera of Lycophytes are the Selaginellaceae. Like other Lycophytes, Selaginellids bear their spores in a strobilus but they have an unusual strobilus. Which answer below best describes this difference? O their spores are always diploid O they are gaemtophyte dominant O their spores are heterosporous O their strobilus is dependnent upon the female gametophyte like mosses APR 25 étv MacBook Pro G Search or type URL @ #3 % %24
- Which of the following is not a structural characteristic of fungi? Hyphae Spores Roots O MyceliumGametophyte Sporophyte ● Haploid DiploidOne of the genera of Lycophytes is Selaginella. Like other Lycophytes, Selaginellids bear their spores in a strobilus but they have an unusual strobilus which sets them apart from their relatives. Which answer below best describes this distinction? their spores are always diploid O they are gametophyte-dominant their spores are heterosporous their strobilus is dependnent upon the female gametophyte like mosses