Zip Code: 47405. The Weather Warehouse provides a complete Weather history for over 10,000 official National Weather Service (NWS/NOAA) government weather stations (one of the best offerings on the web).Past weather data is available for some stations as far back as 1902.ip Code: 47405. The Weather Warehouse provides a complete Weather history for over 10,000 official National Weather Service (NWS/NOAA) government weather stations (one of the best offerings on the web).
Reproduction in Nonvascular Plants ï Nonvascular plants have a life cycle called alternation of generations. â¢ A gamete-producing stage (gametophyte) alternates with a spore-producing stage (sporophyte).â¢ Gametophytes produce gametes (eggs and sperm) in separate multicellular structures.eproductive Structures of Seed Plants ï Reproduction in seed plants (gymnosperms and angiosperms) is very different from reproduction in seedless plants. ï You need a microscope to see the gametophytes of seed plants. ï Spores are not released from seed plants.
Homospory characterizes plants that produce spores that are all the same size (as in bryophytes and most seedless vascular plants). Homospory can result in bisexual gametophytes (as in ferns, pg 611) or unisexual gametophytes (male or female) as in mosses - see pg 607 in the text. Heterospory characterizes plants that produce spores of different sizes: megaspores and microspores which give rise to separate female and male gametophytes, respectively. Contrast sperm delivery in seedless plants with sperm delivery in seed plants.