An Introduction to the Study of Social Evolution: The Prehistoric PeriodCentury, 1915 - 306 من الصفحات |
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الصفحة 13
... produced giants only ; two - thirds of them ( impure dominants ) pro- duced giants in the proportion of 3 to 1. Thus the F2 generation , produced by allowing the crossbred forms or hybrids ( F1 ) to self - fertilize , consisted of one ...
... produced giants only ; two - thirds of them ( impure dominants ) pro- duced giants in the proportion of 3 to 1. Thus the F2 generation , produced by allowing the crossbred forms or hybrids ( F1 ) to self - fertilize , consisted of one ...
الصفحة 14
... produce only normal mice ; these are pure dominants , while others of the normal mice produce normal and waltzing mice in the proportion of three normal to one waltzing mice ; these are impure NORMAL MOUSE WALTZING MOUSE dominants ...
... produce only normal mice ; these are pure dominants , while others of the normal mice produce normal and waltzing mice in the proportion of three normal to one waltzing mice ; these are impure NORMAL MOUSE WALTZING MOUSE dominants ...
الصفحة 31
... produces a wonderfully exact copy of the parent in the child , there is never pre- cise reduplication . There is latitude for individual vari- ation . If , among the innumerable multitudes of indi- vidual variations that may occur , one ...
... produces a wonderfully exact copy of the parent in the child , there is never pre- cise reduplication . There is latitude for individual vari- ation . If , among the innumerable multitudes of indi- vidual variations that may occur , one ...
الصفحة 34
... : " first , those produced by the effect of the environment upon the organism ; and second , those resulting from the reac- 8 Metcalf , op . cit . , p . 73 . tion upon itself of the activity of the animal or 34 SOCIAL EVOLUTION.
... : " first , those produced by the effect of the environment upon the organism ; and second , those resulting from the reac- 8 Metcalf , op . cit . , p . 73 . tion upon itself of the activity of the animal or 34 SOCIAL EVOLUTION.
الصفحة 35
... individual modifications produced by environment , wherein does the importance of function and environment consist ? 9 Ibid . , pp . 75-77 . The answer is found in the selective influence of environ- THE STRUGGLE FOR EXISTENCE 35.
... individual modifications produced by environment , wherein does the importance of function and environment consist ? 9 Ibid . , pp . 75-77 . The answer is found in the selective influence of environ- THE STRUGGLE FOR EXISTENCE 35.
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Acheulian ancestors ancient apes Asia Aurignacian average become Birkner blond Boas body bone Brehon laws cave ceremonies changes character civilization clan climate color culture custom Darwin descent Diagram Diluviale Mensch environment Epoch Europe evidence evolution favorable FIGURE Flint Implements Forrer germ cells Giddings glacial habit hair heredity human Ibid imitation important Indians individual influence inherited Keane living lower Lower Paleolithic Magdalenian marriage Mensch in Europa Metcalf metronymic Mind of Primitive modification Mousterian muscles natural selection Neanderthal Neolithic offspring organization origin parents phratries Pithecanthropus Erectus population possess prehistoric produce Professor Quaternary Races of Europe racial regions savage skull slave social society Sociology soma species spirit spotted chickens stage stature stone age Stone Implements survive tend theory tion totem tradition transition tribal tribes Tylor Upper Paleolithic Urgeschichte des Europäers usages variations White race