The Physical Basis of SocietyD. Appleton, 1916 - 406 من الصفحات |
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الصفحة 61
... male and female . The garden plants , the date bearers , were females ; the desert plants were males ; and the waving of the branches over the females meant the transference of the fertilizing pollen dust from the one to the other . " 7 ...
... male and female . The garden plants , the date bearers , were females ; the desert plants were males ; and the waving of the branches over the females meant the transference of the fertilizing pollen dust from the one to the other . " 7 ...
الصفحة 195
... male divides much more rapidly than the ovum of the female and becomes more numerous and much smaller . By the time the chicken is hatched or the child born it is believed this division period is stopped in the female and hence that the ...
... male divides much more rapidly than the ovum of the female and becomes more numerous and much smaller . By the time the chicken is hatched or the child born it is believed this division period is stopped in the female and hence that the ...
الصفحة 196
... male all the four cells thus formed are alike and may function . In the female , however , in the first of the two divisions one cell is of normal size , the other is small and is known as a polar body . At the second division this ...
... male all the four cells thus formed are alike and may function . In the female , however , in the first of the two divisions one cell is of normal size , the other is small and is known as a polar body . At the second division this ...
الصفحة 198
... males , the fertilized eggs as regularly producing females . Recognizing frankly then that there are many unsolved questions and many apparent contradictions in the present state of knowledge there is a growing opinion that the trail ...
... males , the fertilized eggs as regularly producing females . Recognizing frankly then that there are many unsolved questions and many apparent contradictions in the present state of knowledge there is a growing opinion that the trail ...
الصفحة 202
... males , the circles females . About 1836 , black and white Spanish chickens were in- troduced into England . The cross of these two was a finely mottled gray known as the blue Andalusian , much esteemed by fanciers . To their disgust ...
... males , the circles females . About 1836 , black and white Spanish chickens were in- troduced into England . The cross of these two was a finely mottled gray known as the blue Andalusian , much esteemed by fanciers . To their disgust ...
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