mszaki.docx

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http://www.wersus.com.pl/2006%20obrazki/botanika/cz2/Mszaki_Przyklady_roznych_gat.jpghttp://www.wersus.com.pl/2006%20obrazki/botanika/cz2/Mszaki_Klasa_Watrobowce.jpg
http://t0.gstatic.com/images?q=tbn:ANd9GcRTmKVXLfTHrrMLAjmXxnskzk-Ix9T2UbVHtYYnJJo60XHMsWfM
http://www.wersus.com.pl/2006%20obrazki/botanika/cz2/Mchy_Mchy_wlasciwe_pratnikowce.jpghttp://t1.gstatic.com/images?q=tbn:ANd9GcSN_W0Kr47k_DG8skA2f8w9y2rp7vQyWdPdsy0dJWxsVZL8qRGU http://www.biologia.pl/botanika/VIII2.gifArt:The life cycle of the fern. (1) Clusters (sori) of sporangia (spore cases) grow on the undersurface of mature fern leaves. (2) Released from its spore case, the haploid spore is carried to the ground, where it germinates into a tiny, usually heart-shaped, gametophyte (gamete-producing structure), anchored to the ground by rhizoids (rootlike projections). (3) Under moist conditions, mature sperm are released from the antheridia and swim to the egg-producing archegonia that have formed on the gametophyte's lower surface. (4) When fertilization occurs, a zygote forms and develops into an embryo within the archegonium. (5) The embryo eventually grows larger than the gametophyte and becomes a sporophyte.H:\E\nauczanie biologii\tematyka\przegląd systematyczny\Rośliny\paprotniki\rysunki\paprocie.jpgcykl rozwojowy sosnycykl rozwojowy wisniwatrobowce

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