On the Origin of Species by Means of Natural Selection: Or The Preservation of Favoured Races in the Struggle for LifeHumphrey Milford, Oxford University Press, 1923 - 454ÆäÀÌÁö |
µµ¼ º»¹®¿¡¼
63°³ÀÇ °á°ú Áß 1 - 5°³
9 ÆäÀÌÁö
... extremely rare under nature , but far from rare under cultivation ; and in this case we see that the treatment of the parent has affected a bud or offset , and not the ovules or pollen . But it is the opinion of most physiologists that ...
... extremely rare under nature , but far from rare under cultivation ; and in this case we see that the treatment of the parent has affected a bud or offset , and not the ovules or pollen . But it is the opinion of most physiologists that ...
10 ÆäÀÌÁö
... extremely valuable . When all or nearly all the individuals exposed to certain conditions are affected in the same way , the change at first appears to be directly due to such conditions ; but in some cases it can be shown that quite ...
... extremely valuable . When all or nearly all the individuals exposed to certain conditions are affected in the same way , the change at first appears to be directly due to such conditions ; but in some cases it can be shown that quite ...
19 ÆäÀÌÁö
... extremely different races or species , I can hardly believe . Sir J. Sebright ex- pressly experimentised for this object , and failed . The offspring from the first cross between two pure breeds is tolerably and sometimes ( as I have ...
... extremely different races or species , I can hardly believe . Sir J. Sebright ex- pressly experimentised for this object , and failed . The offspring from the first cross between two pure breeds is tolerably and sometimes ( as I have ...
30 ÆäÀÌÁö
... extremely alike the flowers ; how unlike the flowers of the heartsease are , and how alike the leaves ; how much the fruit of the different kinds of gooseberries differ in size , colour , shape , and hairi- ness , and yet the flowers ...
... extremely alike the flowers ; how unlike the flowers of the heartsease are , and how alike the leaves ; how much the fruit of the different kinds of gooseberries differ in size , colour , shape , and hairi- ness , and yet the flowers ...
36 ÆäÀÌÁö
... extremely small differences , and it is in human nature to value any novelty , however slight , in one's own possession . Nor must the value which would formerly be set on any slight differences in the indi- viduals of the same species ...
... extremely small differences , and it is in human nature to value any novelty , however slight , in one's own possession . Nor must the value which would formerly be set on any slight differences in the indi- viduals of the same species ...
±âŸ ÃâÆǺ» - ¸ðµÎ º¸±â
ÀÚÁÖ ³ª¿À´Â ´Ü¾î ¹× ±¸¹®
accumulated adapted affinities allied species America amount analogous ancient appear Archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distinct species divergence doubt embryo endemic Europe existing exterminated extinct extremely facts favourable fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing land larv©¡ less living male mammals manner Marsupials migration modification modified descendants natural selection naturalists nearly nest oceanic islands offspring organisation perfect pigeons pistil plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rock-pigeon rudimentary organs seeds sexual selection Silurian slight South America sterility structure struggle successive suppose swimbladder tend theory tion trees variability variation vary whole widely