Evolution and AdaptationGood Press, 5 нояб. 2021 г. - Всего страниц: 410 The chapters presented in this book were written by Thomas Hunt Morgan, an American evolutionary biologist, geneticist, embryologist, and science author who won the Nobel Prize in Physiology or Medicine in 1933 for discoveries elucidating the role that the chromosome plays in heredity. Here, he lays out his ideas on the relations between the organism and its environment and whether Darwinian ideas are enough to explain some of the phenomena he observed during his studies, especially those of regeneration. |
Содержание
THE THEORY OF EVOLUTION Continued | |
Conclusions | |
Variation and Competition in Nature | |
General Criticism of the Theory of Sexual Selection | |
Darwins Hypothesis of Pangenesis | |
CONTINUOUS AND DISCONTINUOUS VARIATION AND HEREDITY | |
Discontinuous Variation | |
The Mutation Theory of De Vries | |
EVOLUTION AS THE RESULT OF EXTERNAL AND INTERNAL FACTORS | |
Responsive Changes in the Organism that adapt it to the New Environment | |
THE ORIGIN OF THE DIFFERENT KINDS OF ADAPTATIONS | |
The Theory of Natural Selection | |
Sterility between Species | |
DARWINS THEORY OF SEXUAL SELECTION | |
Length of Life as an Adaptation | |
SEX AS AN ADAPTATION | |
Sex as a Phenomenon of Adaptation | |
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acquired characters adaptation adult advantage amongst ancestors animals and plants appear arisen artificial selection assume become believe birds breed butterflies caterpillars causes color conclusion connection crustaceans Darwin Darwinian degeneration degrees descendants direction domestic eggs embryo environment evidence evolution existence explain fact females fertilized flowers fluctuating variations gemmules genus geotropic germ-cells give hybrid hypothesis important individuals insects instance instinct kind Lamarck Lamarckian large number larvæ later light living males mammals mollusks mutation theory Nägeli natural selection notochord offspring organs origin Origin of Species pangenesis parent form parthenogenetic polar body pollen present principle probable produced question race recapitulation theory regard relation reproduction resemblance response result rotifers secondary sexual characters seeds sexual selection shown side sort spermatozoon stages stamens sterility structure supposed Table of Contents takes place theory of natural transmutation theory variability varieties vertebrates Vries Weismann wings young