The Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life, Volume 1 |
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Page 6
... called the same genera are lineal descendants of some other and generally extinct species , in the same manner as the acknowledged varieties of any one species are the de- scendants of that species . Furthermore , I am convinced that ...
... called the same genera are lineal descendants of some other and generally extinct species , in the same manner as the acknowledged varieties of any one species are the de- scendants of that species . Furthermore , I am convinced that ...
Page 9
... called monstrosities arise ; but monstrosities cannot be separated by any distinct line from slighter variations . All such changes of structure , whether extremely slight or strongly marked , which appear amongst many individuals ...
... called monstrosities arise ; but monstrosities cannot be separated by any distinct line from slighter variations . All such changes of structure , whether extremely slight or strongly marked , which appear amongst many individuals ...
Page 10
... called the indirect action of changed conditions , namely , through the reproductive system of being affected , we may infer that variability is thus induced , partly from the fact of this system being extremely sensitive to any change ...
... called the indirect action of changed conditions , namely , through the reproductive system of being affected , we may infer that variability is thus induced , partly from the fact of this system being extremely sensitive to any change ...
Page 11
... called by gardeners ; that is , of plants which have suddenly produced a single bud with a new and sometimes widely different character from that of the other buds on the same plant . These bud variations , as CHAP . I. ] VARIATION ...
... called by gardeners ; that is , of plants which have suddenly produced a single bud with a new and sometimes widely different character from that of the other buds on the same plant . These bud variations , as CHAP . I. ] VARIATION ...
Page 13
... called correlated variation . Important changes in the embryo or larva will probably entail changes in the mature animal . In monstrosities , the correlations between quite distinct parts are very curious ; and many instances are given ...
... called correlated variation . Important changes in the embryo or larva will probably entail changes in the mature animal . In monstrosities , the correlations between quite distinct parts are very curious ; and many instances are given ...
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Common terms and phrases
adapted advantage allied analogous animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree developed difficulty distinct species disuse divergence 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 in number individual differences inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less likewise males manner Melipona Mivart natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species perfect period pigeons pollen pollen-grains present preserved 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 transitional tree variability variations varieties vary widely wings young