On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for LifeD. Appleton, 1909 - 430ÆäÀÌÁö |
µµ¼ º»¹®¿¡¼
98°³ÀÇ °á°ú Áß 1 - 5°³
14 ÆäÀÌÁö
... doubt errors will have crept in , though I hope I have always been cautious in trusting to good authorities alone . I can here give only the general conclusions at which I have arrived , with a few facts in illustration , but which , I ...
... doubt errors will have crept in , though I hope I have always been cautious in trusting to good authorities alone . I can here give only the general conclusions at which I have arrived , with a few facts in illustration , but which , I ...
17 ÆäÀÌÁö
... doubt , after the most de- liberate study and dispassionate judgment of which I am capable , that the view which most naturalists enter- tain , and which I formerly entertained - namely , that each species has been independently created ...
... doubt , after the most de- liberate study and dispassionate judgment of which I am capable , that the view which most naturalists enter- tain , and which I formerly entertained - namely , that each species has been independently created ...
23 ÆäÀÌÁö
... doubts how strong is the tendency to inheritance : like produces like is his fundamental belief : doubts have been thrown on this principle by theoretical writers alone . When any deviation of structure often appears , and we see it in ...
... doubts how strong is the tendency to inheritance : like produces like is his fundamental belief : doubts have been thrown on this principle by theoretical writers alone . When any deviation of structure often appears , and we see it in ...
26 ÆäÀÌÁö
... doubt could not so perpetually recur . It has often been stated that domestic races do not differ from each other in characters of generic value . I think it can be shown that this statement is hardly correct ; but naturalists differ ...
... doubt could not so perpetually recur . It has often been stated that domestic races do not differ from each other in characters of generic value . I think it can be shown that this statement is hardly correct ; but naturalists differ ...
27 ÆäÀÌÁö
... doubt about the immutability of the many very closely allied natural species — for instance , of the many foxes - inhabiting different quarters of the world . I do not believe , as we shall presently see , that the whole amount of ...
... doubt about the immutability of the many very closely allied natural species — for instance , of the many foxes - inhabiting different quarters of the world . I do not believe , as we shall presently see , that the whole amount of ...
±âŸ ÃâÆǺ» - ¸ðµÎ º¸±â
ÀÚÁÖ ³ª¿À´Â ´Ü¾î ¹× ±¸¹®
accumulated adapted affinities allied species America analogous ancient animals appear archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo endemic existing exterminated extinct extremely facts favourable fertilised fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids hybrids produced important increase individuals inhabitants inherited insects instance instincts intercrossing intermediate larv©¡ laws less living males mammals manner migration modification modified descendants natural selection naturalists nearly nest occasionally offspring organic organisation origin of species perfect pigeons plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rock-pigeon rudimentary seeds sexual sexual selection Silurian slight sometimes South America sterility structure struggle successive supposed swimbladder tend theory variability variations varieties vary whole widely