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物种起源英文版-Chapter 10 On The Geological Succession Of Organic Beings

On the slow and successive appearance of new species. On their different rates of change. Species once lost do not reappear. Groups of speci…

时间: 2022-06-12 浏览数: 9 收藏数: 0 评分: 0 测试数: 37 最快速度: 51 WPM 字数: 62018 开始打字练习

物种起源英文版-Chapter 9 On The Imperfection Of The Geological Record

On the absence of intermediate varieties at the present day. On the nature of extinct intermediate varieties; on their number. On the vast l…

时间: 2022-06-12 浏览数: 30 收藏数: 1 评分: 0 测试数: 314 最快速度: 115 WPM 字数: 58484 开始打字练习

物种起源英文版-Chapter 8 Hybridism

Distinction between the sterility of first crosses and of hybrids. Sterility various in degree, not universal, affected by close interbreedi…

时间: 2022-06-12 浏览数: 9 收藏数: 0 评分: 0 测试数: 37 最快速度: 54 WPM 字数: 61062 开始打字练习

物种起源英文版-Chapter 7 Instinct

Instincts comparable with habits, but different in their origin. Instincts graduated. Aphides and ants. Instincts variable. Domestic instinc…

时间: 2022-06-12 浏览数: 5 收藏数: 0 评分: 0 测试数: 22 最快速度: 36 WPM 字数: 69179 开始打字练习

物种起源英文版-Chapter 6 Difficulties On Theory

Difficulties on the theory of descent with modification. Transitions. Absence or rarity of transitional varieties. Transitions in habits of …

时间: 2022-06-12 浏览数: 7 收藏数: 0 评分: 0 测试数: 29 最快速度: 49 WPM 字数: 66409 开始打字练习

物种起源英文版-Chapter 5 Laws Of Variation

Effects of external conditions. Use and disuse, combined with natural selection; organs of flight and of vision. Acclimatisation. Correlatio…

时间: 2022-06-12 浏览数: 5 收藏数: 0 评分: 0 测试数: 25 最快速度: 56 WPM 字数: 72535 开始打字练习

物种起源英文版-Chapter 4 Natural Selection

Natural Selection: its power compared with man's selection, its power on characters of trifling importance, its power at all ages and on bot…

时间: 2022-06-12 浏览数: 6 收藏数: 0 评分: 0 测试数: 32 最快速度: 45 WPM 字数: 94155 开始打字练习

物种起源英文版-Chapter 3 Struggle For Existence

Bears on natural selection. The term used in a wide sense. Geometrical powers of increase. Rapid increase of naturalised animals and plants.…

时间: 2022-06-12 浏览数: 13 收藏数: 0 评分: 0 测试数: 71 最快速度: 60 WPM 字数: 35620 开始打字练习

物种起源英文版-Chapter 2 Variation Under Nature

Variability. Individual differences. Doubtful species. Wide ranging, much diffused, and common species vary most. Species of the larger gene…

时间: 2022-06-12 浏览数: 8 收藏数: 0 评分: 0 测试数: 85 最快速度: 52 WPM 字数: 29378 开始打字练习

物种起源英文版-Chapter 1 Variation Under Domestication

Causes of Variability. Effects of Habit. Correlation of Growth. Inheritance. Character of Domestic Varieties. Difficulty of distinguishing b…

时间: 2022-06-12 浏览数: 14 收藏数: 0 评分: 0 测试数: 72 最快速度: 47 WPM 字数: 69631 开始打字练习

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