 As many more individuals of each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it follows that any being, if it vary however slightly in any manner profitable to itself, under...  University of California Publications in History - Stran 2521916Celotni ogled - O knjigi
 | William Marion Goldsmith - 1924 - 156 strani
...earlier forms. The method by which this modification takes place is clearly stated by Darwin himself: "As many more individuals of each species are born than can possibly survive (1, overproduction), consequently, there is frequently recurring struggle for existence (2, struggle... | |
 | Osborn Zoological Laboratory - 1921 - 448 strani
..."natural selection, or the preservation of favored races in the struggle for life." In Darwin's words : "As many more individuals of each species are born...can possibly survive, and as, consequently, there is frequently recurring struggle for existence, it follows that any being, if it vary however slightly... | |
 | James McKeen Cattell - 1921 - 596 strani
..."natural selection, or the preservation of favored races in the struggle for life." In Darwin's words: "As many more individuals of each species are born...can possibly survive, and as, consequently, there is frequently recurring struggle for existence, it follows that any being, if it vary however slightly... | |
 | Peter Gay - 1993 - 724 strani
...searchers for usable passages supporting aggressiveness could easily find them in the master's writings. "As many more individuals of each species are born than can possibly survive," he had asserted, "and as, consequently, there is a frequently recurring struggle for existence, it... | |
 | Jack E. Staub - 1994 - 390 strani
...limitations of food supply) forces restrain the increase of certain phenotypes. Darwin stated that, "As many more individuals of each species are born...manner profitable to itself, under the complex and somewhat varying conditions of life, will have a better chance of surviving, and thus be naturally... | |
 | Charles Darwin - 1998 - 486 strani
...be treated of. This is the doctrine of Malthus, applied to the whole animal and vegetable kingdoms. As many more individuals of each species are born than can possibly survive; and as, consequendy, there is a frequendy recurring struggle for existence, it follows that any being, if it... | |
 | Granville C. Henry - 1998 - 260 strani
...Notice, Darwin presents the occurrence of natural selection as an argument from the assumptions. As ... more individuals of each species are born than can possibly survive; and as, ... there is a frequently recurring struggle for existence, it follows that any being, if it vary .... | |
 | Patrick R. Hof, Charles V. Mobbs - 2001 - 960 strani
...to the substantially increasing burden of those disorders? Charles Darwin (1859) deduced that in the "struggle for existence, it follows that any being,...varying conditions of life, will have a better chance of survival." Accordingly, survival is not random, and competition for survival will result in "survival... | |
 | Izabella Nowakowa, Leszek Nowak - 2000 - 546 strani
...connection between the two categories. that of natural selection and that of the struggle for existence. As many more individuals of each species are born...recurring struggle for existence. it follows that any heing. if it vary however slightly in any mansier profitable to itself. under the complex and sometimes... | |
 | Nicholas S. Thompson, François Tonneau - 2001 - 346 strani
...Darwin's original statement of natural selection. as given in the early pages of On The Origin of Species: "As many more individuals of each species are born...survive: and as. consequently. there is a frequently occurring Struggle for Existence. it follows that any being. if it vary however slightly in any manner... | |
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