On the Origin of Species by Means of Natural Selection: Or The Preservation of Favored Races in the Struggle for Life, 2±ÇD. Appleton, 1888 - 458ÆäÀÌÁö |
µµ¼ º»¹®¿¡¼
85°³ÀÇ °á°ú Áß 1 - 5°³
v ÆäÀÌÁö
... vary most - Species of the larger genera in each country vary more frequently than the species of the smaller genera - Many of the species of the larger genera resemble varieties in being very closely , but unequally , related to each ...
... vary most - Species of the larger genera in each country vary more frequently than the species of the smaller genera - Many of the species of the larger genera resemble varieties in being very closely , but unequally , related to each ...
vi ÆäÀÌÁö
... vary in an analogous manner— Reversions to long - lost characters - Summary 106-132 CHAPTER VI . DIFFICULTIES OF THE THEORY . - Difficulties of the theory of descent with modification Absence or rarity of transitional varieties ...
... vary in an analogous manner— Reversions to long - lost characters - Summary 106-132 CHAPTER VI . DIFFICULTIES OF THE THEORY . - Difficulties of the theory of descent with modification Absence or rarity of transitional varieties ...
xv ÆäÀÌÁö
... vary in some degree , and , secondly , that agriculturists improve their domesticated animals by selection ; and then , he adds , but what is done in this latter case " by art , seems to be done with equal efficacy , though more slowly ...
... vary in some degree , and , secondly , that agriculturists improve their domesticated animals by selection ; and then , he adds , but what is done in this latter case " by art , seems to be done with equal efficacy , though more slowly ...
3 ÆäÀÌÁö
... vary however slightly in any manner profitable to itself , under the com- plex and sometimes varying conditions of life , will have a better chance of surviving , and thus be naturally selected . From the strong principle of inheritance ...
... vary however slightly in any manner profitable to itself , under the com- plex and sometimes varying conditions of life , will have a better chance of surviving , and thus be naturally selected . From the strong principle of inheritance ...
5 ÆäÀÌÁö
... vary , it generally continues varying for many generations . No case is on record of a variable organism ceasing to vary under cultivation . Our oldest cultivated plants , such as wheat , still yield new varie- ties : our oldest ...
... vary , it generally continues varying for many generations . No case is on record of a variable organism ceasing to vary under cultivation . Our oldest cultivated plants , such as wheat , still yield new varie- ties : our oldest ...
±âŸ ÃâÆǺ» - ¸ðµÎ º¸±â
ÀÚÁÖ ³ª¿À´Â ´Ü¾î ¹× ±¸¹®
adapted admit affinities allied species America analogous ancient appear Asa Gray beak become bees believe belonging birds breeds cause cells characters climate closely allied colour continued crossed crustaceans degree developed difficulty distinct species doubt effects eggs embryo existing extinct extremely facts favourable fertilised fertility flowers formation formerly forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number habits Hence hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamell©¡ larv©¡ less living male mammals manner Marsupials migration modified descendants natural selection naturalists nearly nest occasionally occur oceanic islands offspring organisation organs parent peculiar perfect pigeon pistil pollen present preserved principle probably produced quadrupeds ranked reciprocal crosses remarked reproductive resemblance rudimentary seeds sexual selection slight South America stamens sterility structure struggle successive supposed tend theory tion variability variations varieties vary whilst whole wings young