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 x
... Fossils and thei . significance , 289 ; Fossil - bearing rocks and their origin , 292 ; Geological epochs , 296 ; Conditions of extinct life , 297 ; Divergent types and synthetic types , 299 ; Parallelism between geologic and embryonic ...
... Fossils and thei . significance , 289 ; Fossil - bearing rocks and their origin , 292 ; Geological epochs , 296 ; Conditions of extinct life , 297 ; Divergent types and synthetic types , 299 ; Parallelism between geologic and embryonic ...
Página 18
... fossils is a record of past life , true beyond impeachment , but the fragments are so few , so scattered , so broken , as to give only hints of the history they represent . Moreover , as we extend our studies of species we find that ...
... fossils is a record of past life , true beyond impeachment , but the fragments are so few , so scattered , so broken , as to give only hints of the history they represent . Moreover , as we extend our studies of species we find that ...
Página 47
... fossil organisms . There seems to be some slight scientific foundation for the claim that the first organisms lived in polar regions . CHAPTER IV FACTORS AND MECHANISM OF EVOLUTION Even in the LIFE , ITS PHYSICAL BASIS AND SIMPLEST ...
... fossil organisms . There seems to be some slight scientific foundation for the claim that the first organisms lived in polar regions . CHAPTER IV FACTORS AND MECHANISM OF EVOLUTION Even in the LIFE , ITS PHYSICAL BASIS AND SIMPLEST ...
Página 289
... human race has in the past shown a singular lack of insight in the interpretation of animal remains found in the stone . As Lyell has graphically shown 289 -PALEONTOLOGY Fossils and thei significance, 289; Fossil-bearing rocks.
... human race has in the past shown a singular lack of insight in the interpretation of animal remains found in the stone . As Lyell has graphically shown 289 -PALEONTOLOGY Fossils and thei significance, 289; Fossil-bearing rocks.
Página 290
... fossils , to show that these structures were mere sports of nature , whimsicalities of creation , or freaks developed in the fatty matter ( materia pinguis ) of the earth by the en- tangling influence of the revolving stars ...
... fossils , to show that these structures were mere sports of nature , whimsicalities of creation , or freaks developed in the fatty matter ( materia pinguis ) of the earth by the en- tangling influence of the revolving stars ...
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