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
... Live things and lifeless things , 25 ; The basic distinction between life and non - life , 26 ; Protoplasm , 26 ; Chemical make - up of proto- plasm , 27 ; Physical make - up of protoplasm , 28 ; The cell , 30 ; The simplest animals ...
... Live things and lifeless things , 25 ; The basic distinction between life and non - life , 26 ; Protoplasm , 26 ; Chemical make - up of proto- plasm , 27 ; Physical make - up of protoplasm , 28 ; The cell , 30 ; The simplest animals ...
Página 11
... live and reproduce their kind . This theory is now the central axis of all biological investi- gation in all its branches , from ethics to histology , from anthro- pology to bacteriology . In the light of this theory every peculiarity ...
... live and reproduce their kind . This theory is now the central axis of all biological investi- gation in all its branches , from ethics to histology , from anthro- pology to bacteriology . In the light of this theory every peculiarity ...
Página 25
... live thing and a lifeless one is usually of the simplest , but to define this distinction in terms so precise that the definition may be used as an invariable criterion is a problem of considerable difficulty . The sheep grazing in the ...
... live thing and a lifeless one is usually of the simplest , but to define this distinction in terms so precise that the definition may be used as an invariable criterion is a problem of considerable difficulty . The sheep grazing in the ...
Página 38
... live very long out of water and that birds cannot live in water . These , however , are conditions which depend on the special ecological habits of these two particular kinds of animals . The necessity of a constant and sufficient ...
... live very long out of water and that birds cannot live in water . These , however , are conditions which depend on the special ecological habits of these two particular kinds of animals . The necessity of a constant and sufficient ...
Página 40
... live under this pressure and under no other condition . The animals that live in water , however , sustain a much greater pressure , this pressure increasing with distance . Certain ocean fishes live habitually in great depths , at from ...
... live under this pressure and under no other condition . The animals that live in water , however , sustain a much greater pressure , this pressure increasing with distance . Certain ocean fishes live habitually in great depths , at from ...
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