| 1860 - Страниц: 966
...truly said to struggle with the plants of the same and other kinds which already clothe the ground. ... In these several senses which pass into each other,...sake the general term of struggle for existence."* There arc many singular instances given of the curions and unexpected correlations between the various... | |
| Charles Darwin - 1861 - Страниц: 470
...in order to tempt birds to devour and thus disseminate its seeds rather than those of other plants. In these several senses, which pass into each other,...•sake the general term of struggle for existence. A struggle for existence inevitably follows from the high rate at which all organic beings tend to... | |
| 1861 - Страниц: 824
...in order to tempt birds to devour and thus disseminate its seeds, rather than those of other plants. In these several senses which pass into each other,...convenience sake the general term of struggle for existence. " A struggle for existence inevitably follows from the high rate at which all organic beings tend to... | |
| Illinois State Agricultural Society - 1861 - Страниц: 736
...History, and well illustrates the battle for life which is constantly waging all around us : " A straggle for existence inevitably follows from the high rate at which all organic bi'ingi tend to increase. Every being which, during its natural lifetime, produces several e<rgs or... | |
| 1912 - Страниц: 772
...is well known and so it is not surprising to find him writing in the "Origin of Species," page 60, A struggle for existence inevitably follows from the...rate at which all organic beings tend to increase. And again on page 72, Each organic being is striving to increase in geometrical ratio; each, at some... | |
| 1912 - Страниц: 772
...is well known and so it is not surprising to find him writing in the "Origin of Species," page 60, A struggle for existence inevitably follows from the...rate at which all organic beings tend to increase. And again on page 72, Each organic being is striving to increase in geometrical ratio; each, at some... | |
| Charles Darwin - 1875 - Страниц: 504
...by birds, its existence depends on them ; and it may metaphorically be said to struggle with other fruit-bearing plants, in tempting the birds to devour...general term of Struggle for Existence. Geometrical Italia of Increase. A struggle for existence inevitably follows from the high rate nt which all organic... | |
| Irish ecclesiastical record - 1884 - Страниц: 840
...nature are, he says, engaged in a perpetual struggle to maintain themselves in existence. He says : " A struggle for existence inevitably follows from the...rate at which all organic beings tend to increase. . . . Hence, as more individuals are produced than can possibly survive, there must in every case be... | |
| Joseph Thomas Cunningham - 1886 - Страниц: 48
...out that the term, "struggle for existence," is used in a large and metaphorical sense. The struggle inevitably follows from the high rate at which all organic beings tend to increase, while the actual numbers of a given species never increase so fast, often decrease, and sometimes remain... | |
| Henry Alleyne Nicholson - 1886 - Страниц: 344
...disseminated by birds, its existence depends on them; and it may metaphorically be said to struggle with other fruit-bearing plants, in tempting the birds to devour and thus disseminate its seeds.' (3) The third proposition of the theory of natural selection is that all living beings are subject... | |
| |