Evolution Of Reproductive Organs In Land Plants PDF Download

Excerpt from Evolution of Sex in Plants Whatever the mechanism Of cell division may be, when the individual protoplast divides to form two new protoplasts, it performs the function Of reproduction. A one-celled plant has in this way produced two new plants. It follows, therefore, that the fundamental reproductive mechanism is cell division, and there is really nothing more in the reproductive power than this phenomenon Of cell division, whether it be sexual or asex ual reproduction. If the essential machinery Of repro duction is provided for in cell division, it follows that the cell fusion which precedes cell division, and which is Often referred to as the sex act, must be regarded as an addition to the fundamental process Of reproduction, an added preliminary process, not necessary to repro duction, but securing something in connection with it. In other words, reproduction is one Of the functions Of protoplasts, and when an individual is a single proto plast, cell division and reproduction are Obviously the same. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.