Evolution and animal life, an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animalsD. Appleton, 1908 - 489 páginas |
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Página vii
... of production , 52 ; Heredity , 53 ; Isolation , 53 ; Muta- tion , 54 ; Orthogenesis , 55 ; Lamarckism and inheritance of ac- quired characters , 55 ; Adaptation , 56 . CHAPTER V. - NATURAL SELECTION AND STRUGGLE FOR EXIST- ENCE vii.
... of production , 52 ; Heredity , 53 ; Isolation , 53 ; Muta- tion , 54 ; Orthogenesis , 55 ; Lamarckism and inheritance of ac- quired characters , 55 ; Adaptation , 56 . CHAPTER V. - NATURAL SELECTION AND STRUGGLE FOR EXIST- ENCE vii.
Página viii
... characters , 72 ; Theory of sexual selection , 75 ; Criticisms of the theory , 77 ; The sexual selection theory largely discredited , 78 . CHAPTER VI . - ARTIFICIAL SELECTION . Natural selection and artificial selection , 80 ; Steps in ...
... characters , 72 ; Theory of sexual selection , 75 ; Criticisms of the theory , 77 ; The sexual selection theory largely discredited , 78 . CHAPTER VI . - ARTIFICIAL SELECTION . Natural selection and artificial selection , 80 ; Steps in ...
Página ix
... CHARACTERS . The Lamarckian principles of evolution , 196 ; Neo - Lamarckism and Neo - Darwinism , 197 ; Acquired characters , 198 ; Effects of use and disuse , 199 ; Environmental modifications not inherited , 200 ; Examples of non ...
... CHARACTERS . The Lamarckian principles of evolution , 196 ; Neo - Lamarckism and Neo - Darwinism , 197 ; Acquired characters , 198 ; Effects of use and disuse , 199 ; Environmental modifications not inherited , 200 ; Examples of non ...
Página 10
... characters and attributes of species and groups have developed with changing conditions of life . The homologies among animals are the results of common descent . The differences are due to various influences , one of the leading 10 ...
... characters and attributes of species and groups have developed with changing conditions of life . The homologies among animals are the results of common descent . The differences are due to various influences , one of the leading 10 ...
Página 13
... characters of organization , unchanged so long as the locality and external conditions remain unchanged . " The number of species actually existing is far beyond ordi-. FIG . 2. - Kangaroo rat from the California - Mojave desert ( one ...
... characters of organization , unchanged so long as the locality and external conditions remain unchanged . " The number of species actually existing is far beyond ordi-. FIG . 2. - Kangaroo rat from the California - Mojave desert ( one ...
Outras edições - Ver tudo
Evolution and Animal Life: An Elementary Discussion of Facts, Processes ... David Starr Jordan,Vernon Lyman Kellogg Visualização integral - 1907 |
Evolution and Animal Life: An Elementary Discussion of Facts, Processes ... David Starr Jordan,Vernon Lyman Kellogg Visualização integral - 1907 |
Evolution and animal life, an elementary discussion of facts, processes ... David Starr Jordan,Vernon Lyman Kellogg Visualização integral - 1907 |
Palavras e frases frequentes
actual adaptation adult animals animals and plants ants apes appear artificial selection bees beetles biologists birds body breeding butterfly called causes centrosome changes CHAPTER characters chromatin chromosomes color and pattern common crab Darwin degeneration degree descent differentiation division egg cell embryo environment existence fact factors fauna female fertilized fishes forms fossils genus germ cells habit hatched heredity honeybee host hybrid individuals influence inheritance insects instinct islands isolation kinds of animals known larva larvæ live lower male mammals matter ment modified mutations natural selection naturalists nest nucleus offspring organic evolution origin Origin of Species parasites parent phenomena plasm primitive produced protoplasm Protozoa race relation reproduction reptiles resemblance Sacculina sea anemone sexual sexual selection sheep species species-forming sperm spines stage structure substance tail theory tion traits tree variation various vertebrates Weismann wings workers young