Plant Life, Considered With Special References to Form And Function
The book Plant Life, Considered With Special References to Form And Function was written by author Charles Reid Barnes Here you can read free online of Plant Life, Considered With Special References to Form And Function book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Plant Life, Considered With Special References to Form And Function a good or bad book?
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In some of the more looselv organized filament-colonies, such as Nostoc (see • 13, and figs. 1 }, 14), there are specialized cells whose function seems to be 21 1 212 PLANT LIFE. to loosen pieces of definite length, which creep out of the jelly, grow, and thus produce new colonies. The greater size reached by most multicellular plants soon renders impossible the continuance of this method of repro- duction, except among those whose cells arc all alike. Should such separation into nearly equal p...arts occur among more highly specialized plants, it is evident that one portion might easily be left without nutritive organs adapted to its needs. The higher plants, therefore, specialize certain regions or members, where, by division or budding or similar processes, reproductive bodies may be formed. II. Spores. 304. Sexual and non-sexual spores. — A spore is a single- celled body capable of producing a new plant. Spores may be formed either by a process of growth or by a sexual act — i.
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