An Introduction to the Study of Social Evolution: The Prehistoric PeriodCentury, 1915 - 306 من الصفحات |
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الصفحة 5
... body of the offspring , but is reserved unchanged for the formation of the germ- cells of the following generation . " Thus it has been said that the parent is rather the trustee of the germ- plasm than the producer of the child . The ...
... body of the offspring , but is reserved unchanged for the formation of the germ- cells of the following generation . " Thus it has been said that the parent is rather the trustee of the germ- plasm than the producer of the child . The ...
الصفحة 6
... bodies of plants and animals which are acquired ; they are modifications , not inborn . When from the total ob- served differences , these peculiarities of sex , age , and modification are subtracted , a very interesting remain- der is ...
... bodies of plants and animals which are acquired ; they are modifications , not inborn . When from the total ob- served differences , these peculiarities of sex , age , and modification are subtracted , a very interesting remain- der is ...
الصفحة 16
... bodies of parent RED WHITE PINK FIGURE 6. Mendelian Inheritance in Four - o'clocks . and offspring . Mendelism explains the organism as built up of a number of definite and separably inheritable characters . Variation seems to consist ...
... bodies of parent RED WHITE PINK FIGURE 6. Mendelian Inheritance in Four - o'clocks . and offspring . Mendelism explains the organism as built up of a number of definite and separably inheritable characters . Variation seems to consist ...
الصفحة 33
... body enlarged ? Under ordinary conditions it is only the germ cells in the body which have any descendants in the following generation . In the body there are muscle cells , bone cells , nerve cells , etc. Weismann used the term soma to ...
... body enlarged ? Under ordinary conditions it is only the germ cells in the body which have any descendants in the following generation . In the body there are muscle cells , bone cells , nerve cells , etc. Weismann used the term soma to ...
الصفحة 34
... Body Cells and Germ Cells . has illustrated this principle by the simple diagram shown in figure 7.8 The diagram shows " that both the germ cells and the soma of any generation are derived from the germ cells alone of the preceding ...
... Body Cells and Germ Cells . has illustrated this principle by the simple diagram shown in figure 7.8 The diagram shows " that both the germ cells and the soma of any generation are derived from the germ cells alone of the preceding ...
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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