The Origin of Species by Means of Natural Selection, Or, The Preservation of Favored Races in the Struggle for LifeWerner Company, Book Manufacturers, 1900 - 538ÆäÀÌÁö |
µµ¼ º»¹®¿¡¼
33°³ÀÇ °á°ú Áß 1 - 3°³
141 ÆäÀÌÁö
... supposed to be extremely slight , but of the most diversified nature ; they are not supposed all to appear simultaneously , but often after long intervals of time ; nor are they all supposed to endure for equal periods . Only those ...
... supposed to be extremely slight , but of the most diversified nature ; they are not supposed all to appear simultaneously , but often after long intervals of time ; nor are they all supposed to endure for equal periods . Only those ...
148 ÆäÀÌÁö
... supposed pro- genitor of our several new sub - genera and genera . It is worth while to reflect for a moment on the character of the new species F14 , which is supposed not to have diverged much in character , but to have retained the ...
... supposed pro- genitor of our several new sub - genera and genera . It is worth while to reflect for a moment on the character of the new species F14 , which is supposed not to have diverged much in character , but to have retained the ...
149 ÆäÀÌÁö
... supposed to be represented in the diagram . And the two new families , or orders , are descended from two species of the original genus , and these are supposed to be descended from some still more ancient and unknown form . We have ...
... supposed to be represented in the diagram . And the two new families , or orders , are descended from two species of the original genus , and these are supposed to be descended from some still more ancient and unknown form . We have ...
±âŸ ÃâÆǺ» - ¸ðµÎ º¸±â
ÀÚÁÖ ³ª¿À´Â ´Ü¾î ¹× ±¸¹®
adapted advantage allied animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree descendants developed difficulty distinct species disuse domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important improved increase individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamell©¡ large number larger genera larv©¡ less males manner Melipona Mivart modified natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species parent perfect period pigeons pollen pollen-grains present preserved prey principle probably produced progenitor quadrupeds rank Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens structure struggle supposed swimbladder tend tendency tion tree variability variations varieties vary widely wings young