On the Origin of Species: A Facsimile of the First EditionHarvard University Press, 1964 - Всего страниц: 502 It is now generally recognized that the publication of Darwin's Origin of Species in 1859 not only decisively altered the basic concepts of biological theory but had a profound and lasting influence on social, philosophic, and religious thought. This work is rightly regarded as one of the most important books ever printed. |
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... sterility of first crosses and of hybrids - Sterility various in degree , not universal , affected by close inter- breeding , removed by domestication - Laws governing the sterility of hybrids Sterility not a special endowment , but ...
... sterility of the hybrids produced from them . Pure species have of course their organs of reproduc- tion in a ... sterility , which is common to the two cases , has to be considered . The distinction has probably been slurred over ...
... sterility thus superinduced and that of hybrids , there are many points of similarity . In both cases the sterility is independent of general health , and is often accom- panied by excess of size or great luxuriance . In both cases ...
Содержание
INTRODUCTION Page | 1 |
VARIATION UNDER DOMESTICATION | 7 |
CHAPTER II | 44 |
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Publications of the Biological Services Program Biological Services Program (U.S.) Полный просмотр - 1978 |
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An Introduction to Behavioural Ecology Nicholas B. Davies,John R. Krebs Недоступно для просмотра - 1993 |