Otsing Pildid Maps YouTube Uudised Gmail Drive Kalender
Logi sisse
Raamatud Books
" It seems evident that what takes place among the individuals of a species must also occur among the several allied species of a group, — viz., that those which are best adapted to obtain a regular supply of food, and to defend themselves against the... "
Natural Selection and Tropical Nature: Essays on Descriptive and Theoretical ... - Page 26
by Alfred Russel Wallace - 1891 - 492 lehte
Full view - About this book

Journal of the Proceedings of the Linnean Society: Zoology

1859
...existence," in which the weakest and least perfectly organized must always succumb. Now it is elear that what takes place among the individuals of a species...food, and to defend themselves against the attacks of thcir enemies and the vicissitudes of the seasons, must necessarily obtain and preserve a superiority...
Full view - About this book

Contributions to the Theory of Natural Selection: A Series of Essays

Alfred Russel Wallace - 1870 - 384 lehte
...commenced by remarking, " a struggle for existence," in which the weakest and least perfectly organized must always succumb. The Abundance or Rarity of a...while those species which from some defect of power or organization are the least capable of counteracting the vicissitudes of food-supply, &c., must diminish...
Full view - About this book

Contributions to the Theory of Natural Selection: A Series of Essays

Alfred Russel Wallace - 1870 - 384 lehte
...existence," in which the weakest and least perfectly organized must always succumb. The Abundance or Rarify of a Species dependent upon its more or less perfect...while those species which from some defect of power or organization are the least capable of counteracting the vicissitudes of food-supply, Ac., must diminish...
Full view - About this book

Contributions to the Theory of Natural Selection

Alfred Russel Wallace - 1871 - 400 lehte
...succumb. The Abundance or Rarity of a Species dependent upon iis more or less perfect Adaptation to ilie Conditions of Existence, It seems evident that what...while those species which from some defect of power or organization are the least capable of counteracting the vicissitudes of food-supply, &c., must diminish...
Full view - About this book

Contributions to the Theory of Natural Selection

Alfred Russel Wallace - 1871
...commenced by remarking, Cs a struggle for existence," in which the weakest and least perfectly organized must always succumb. The Abundance or Rarity of a...must also occur among the several allied species of a group,—viz., that those which are best adapted to obtain a regular supply of food, and to defend...
Full view - About this book

Contributions to the Theory of Natural Selection: A Series of Essays

Alfred Russel Wallace - 1871 - 384 lehte
...commenced by remarking, " a struggle for existence," in which the weakest and least perfectly organized must always^ succumb. The Abundance or Rarity of a...must also occur among the several allied species of a group,—viz., that those which are best adapted to obtain a regular supply of food, and to defend...
Full view - About this book

Popular Science Monthly, 60. köide

1902
...existence,' in which the weakest and least perfectly organized must always succumb. Now it is clear that what takes place among the individuals of a species...while those species which from some defect of power or organization are the least capable of counteracting the vicissitudes of food supply, etc., must diminish...
Full view - About this book

Outlines of Evolutionary Biology

Arthur Dendy - 1912 - 454 lehte
...existence,' in which the weakest and least perfectly organized must always succumb. " Now it is clear that what takes place among the individuals of a species...while those species which from some defect of power or organization are the least capable of counteracting the vicissitudes of food supply, &c., must diminish...
Full view - About this book

Zoologist: A Monthly Journal of Natural History, 16. köide

1858
...existence," in which the weakest and least perfectly organized must always succumb. Now it is clear that what takes place among the individuals of a species...while those species which from some defect of power or organization are the least capable of counteracting the vicissitudes of food, supply, &c., must diminish...
Full view - About this book

Evolution: Genesis and Revelations: With Readings from Empedocles to Wilson

C. Leon Harris - 1981 - 339 lehte
...existence," in which the weakest and least perfectly organized must always succumb. Now it is clear that what takes place among the individuals of a species...species of a group, — viz. that those which are the best adapted to obtain a regular supply of food, and to defend themselves against the attacks of...
Limited preview - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF