ScienceJohn Michels (Journalist) 1955 |
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Стр. 5
... natural selection of advantageous mutations in the genes , means must have been evolved for transforming into the materials of living things substances that required an ever more extended series of steps for the conversion process . At ...
... natural selection of advantageous mutations in the genes , means must have been evolved for transforming into the materials of living things substances that required an ever more extended series of steps for the conversion process . At ...
Стр. 8
... Natural selection has decreased the fertility because , with too high a pressure toward population increase , the well - being and efficiency of the organisms are so reduced as actually to lower the potential of the species to undergo ...
... Natural selection has decreased the fertility because , with too high a pressure toward population increase , the well - being and efficiency of the organisms are so reduced as actually to lower the potential of the species to undergo ...
Стр. 45
... natural pigments . Furthermore , when the dopa solution is added to the ashes of hair of different coloration , color solutions similar to extractions of natural pigments are easily obtained . An analogous phenomenon may be found also ...
... natural pigments . Furthermore , when the dopa solution is added to the ashes of hair of different coloration , color solutions similar to extractions of natural pigments are easily obtained . An analogous phenomenon may be found also ...
Содержание
ANNUAL REVIEW | 166 |
PSYCHOLOGY | 189 |
Child Psychology M RadkeYarrow and L J Yarrow | 220 |
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Библиографические данные
| Название | Science |
| Редактор | John Michels (Journalist) |
| Соавтор | American Association for the Advancement of Science |
| Опубликована: | 1955 |
| Владелец оригинала: | Университет штата Миннесота |
| Оцифровано | 17 дек 2019 |
| Экспорт цитаты | BiBTeX EndNote RefMan |