The Origin of Species by Means of Natural Selection: Or the Preservation of Favored Races in the Struggle for Life |
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Page v
... Inheritance - Character of Do- mestic Varieties - Difficulty of distinguishing between Varieties and Species - Origin of domestic varieties from one or more species - Domestic Pigeons , their Differences and Origin- Principles of ...
... Inheritance - Character of Do- mestic Varieties - Difficulty of distinguishing between Varieties and Species - Origin of domestic varieties from one or more species - Domestic Pigeons , their Differences and Origin- Principles of ...
Page 9
... inheritance from either parent or from some more remote ancestor . Even strongly - marked differences occasionally appear in the young of the same litter , and in seedlings from the same seed - capsule . At long intervals of time , out ...
... inheritance from either parent or from some more remote ancestor . Even strongly - marked differences occasionally appear in the young of the same litter , and in seedlings from the same seed - capsule . At long intervals of time , out ...
Page 12
... Inheritance . Changed habits produce an inherited effect , as in the period of the flowering of plants when transported from one climate to another . With animals the increased use or disuse of parts has had a more marked influence ...
... Inheritance . Changed habits produce an inherited effect , as in the period of the flowering of plants when transported from one climate to another . With animals the increased use or disuse of parts has had a more marked influence ...
Page 14
... inherited is unimportant for us . But the number and diversity of inheritable deviations of structure , both those ... inheritance ; that like produces like is his fundamental belief : doubts have been thrown on this principle only by ...
... inherited is unimportant for us . But the number and diversity of inheritable deviations of structure , both those ... inheritance ; that like produces like is his fundamental belief : doubts have been thrown on this principle only by ...
Page 15
... inheritance as the anomaly . The laws governing inheritance are for the most part unknown . No one can say why the same peculiarity in different individuals of the same species , or in dif- ferent species , is sometimes inherited and ...
... inheritance as the anomaly . The laws governing inheritance are for the most part unknown . No one can say why the same peculiarity in different individuals of the same species , or in dif- ferent species , is sometimes inherited and ...
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Common terms and phrases
adapted affinities allied species America ancient appear Asa Gray beak become bees believe belonging birds breeds cause cells characters climate closely allied colour common continent crossed crustaceans degree developed difficulty distinct species domestic doubt effects eggs embryo existing extinct extremely facts favourable fertilised fertility flowers formation forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamellę larvę less living males mammals manner marsupials migration modified descendants natural selection naturalists nearly nest occasionally offspring organisation organs parent peculiar perfect pigeon pistil pollen present principle probably produced progenitor quadrupeds ranked remarked resemblance rudimentary seeds sexual selection Silurian slight South America stamens sterility structure successive supposed swimbladder tend theory tion trees variability variations varieties vary whilst whole wings young