 Even slow-breeding man has doubled in twenty-five years, and at this rate, in a few thousand years, there would literally not be standing room for his progeny. Linnaeus has calculated that if an annual plant produced only two seeds — and there is no...  A Primer of Darwinism and Organic Evolution - Page 58by Joseph Young Bergen, Fanny Dickerson Bergen - 1890 - 261 pagesFull view - About this book
 | Claude C. Albritton - Science - 2002 - 256 pages
...periods of time. Darwin cites calculations which show that "if an annual plant produced only two seeds, and their seedlings next year produced two, and so on, then in twenty years there should be a million plants" (/5). By the same line of reasoning, a population of some 19,ooo,ooo elephants... | |
 | Charles Darwin - History - 2003 - 676 pages
...rate, in a few thousand years, there would literally not be standing room for his progeny. Linnaeus has calculated that if an annual plant produced only...would be a million plants. The elephant is reckoned to be the slowest breeder of all known animals, and I have taken some pains to estimate its probable... | |
 | Barbara Harlow, Mia Carter - History - 2003 - 852 pages
...in less than a thousand years, there would literally not be standing-room for his progeny. Linnaeus has calculated that if an annual plant produced only...produced two, and so on, then in twenty years there should be a million plants. The elephant is reckoned the slowest breeder of all known animals, and... | |
 | Jonathan Silvertown - Science - 2008 - 180 pages
...that if an annual plant produced only two seeds—and there is no plant so unproductive as this—and their seedlings next year produced two, and so on,...in twenty years there would be a million plants." But Darwin had also seen with his own eyes in Argentina how quickly successful reproduction could alter... | |
 | Glyn Lloyd-Hughes - 2005 - 412 pages
...individuals and varieties of the same species who compete for precisely the same resources. Linnaeus 155 has calculated that if an annual plant produced only...two seeds- and there is no plant so unproductive- and their seedlings next year produced two, and so on, then in twenty years there would be a million... | |
 | Paul Coombs - Business & Economics - 2005 - 164 pages
...an annual plant produced only Supporting argument 2 /two seeds _ and no plant is so unproductive - and their seedlings^ /next year produced two, and so on, then in 20 years there should be / 1.000,000 plants. 'The elephant is reckoned the slowest breeder of all animals,... | |
 | Charles Darwin - 2008 - 166 pages
...rate, in a few thousand years, there would literally not be standing room for his progeny. Linnaeus has calculated that if an annual plant produced only...would be a million plants. The elephant is reckoned to be the slowest breeder of all known animals, and I have taken some pains to esti16 mate its probable... | |
 | 1860 - 782 pages
...that if an annual plant produced only two seeds—and there is no plant so unproductive as this—and their seedlings next year produced two, and so on,...would be a million plants. The elephant is reckoned to be the slowest breeder of all known animals, and I have taken some pains to estimate its probable... | |
 | Frederick Orpen Bower - Botany - 1912 - 188 pages
...rapidly very large. Already Linnaeus had calculated that if an annual plant produced only two seeds, and their seedlings next year produced two, and so...then in twenty years there would be a million plants. This is, however, a very slow rate of breeding, and it will be well to enquire what are the rates of... | |
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