Selection; the mechanism of evolution, 2d ed.9780198569725Selection; the mechanism of evolution, 2d ed. Bell, Graham. Oxford U. Press 2008 553 pages $120.00 Hardcover QH375 Advances in experimental evolution since the 1997 textbook textbook Informatics A treatise on a particular subject. See Bible. warrant this updated, more quantitative treatment. In an overview of selection as evolutionary biology's explanatory ex·plan·a·to·ry adj. Serving or intended to explain: an explanatory paragraph. ex·plan principle for the simplest (RNA viruses RNA viruses, n See viruses. ) to the most complex living systems, Bell (biology, McGill U., Montreal, Canada) presents the classic explanation of how small, cumulative adaptive changes can result in unexpected variations. In the final chapter, he questions this premise and maps out research directions to account for the unpredictability of selection. Intervening chapters treat the genetic and ecological ecological emanating from or pertaining to ecology. ecological biome see biome. ecological climax the state of balance in an ecosystem when its inhabitants have established their permanent relationships with each contexts of asexual asexual /asex·u·al/ (a-sek´shoo-al) having no sex; not sexual; not pertaining to sex. a·sex·u·al adj. 1. Having no evident sex or sex organs; sexless. 2. and sexual natural and artificial selection. Numerous graphs illustrate these concepts. References have been updated. ([c]20082005 Book News, Inc., Portland, OR) |
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