The Origin and Evolution of Life: On the Theory of Action, Reaction and Interaction of EnergyScribner, 1917 - Počet stran: 322 |
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actions and reactions adaptive radiation Africa algæ American Museum amphibians ancestral appear aquatic arboreal armature armored author by W. K. bacteria birds body form bony Cambrian carbon CARBONIFEROUS carnivorous causes cell changes chemical messengers chlorophyll chromatin colloidal complex compounds continental deposits Devonian dinosaurs earth elements energy environment enzymes Eocene Epoch eurypterids evolution evolve existing fishes fossil function ganoids geologic germ glands habitat habitat zones herbivorous heredity heredity-chromatin hydrogen ichthyosaurs iguanodonts interaction internal secretion invertebrates Jurassic known limbs littoral living mammalian mammals marine mid-Cambrian modes mosasaurs Museum of Natural Natural History nitrogen North America observed Oligocene Ordovician organism origin Osborn ostracoderms oxygen pelagic period Permian PERMO phase physicochemical plesiosaurs pre-Cambrian primitive primordial proteins protoplasm Protozoa recent reptiles REPTILIA Sauropoda Schuchert seas sharks Silurian similar skeleton species stage structure swift-moving teeth terrestrial Tertiary tion tissues Triassic Upper Cretaceous vertebrates W. K. Gregory Walcott
Oblíbené pasáže
Strana 10 - Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.
Strana 11 - The change of motion is proportional to the motive force impressed ; and is made in the direction of the right line in which that force is impressed.
Strana 238 - But the causes and conditions of variation have yet to be thoroughly explored; and the importance of natural selection will not be impaired, even if further inquiries should prove that variability is definite, and is determined in certain directions rather than in others, by conditions inherent in that which varies.
Strana 11 - To every action there is always opposed an equal reaction: or, the mutual actions of two bodies upon each other are always equal and directed to contrary pans.
Strana 55 - It will, in short, become possible to introduce into the economy a molecular mechanism which, like a very cunningly- contrived torpedo, shall find its way to some particular group of living elements, and cause an explosion among them, leaving the rest untouched.
Strana 6 - Causation is indeed too obscure a principle to bear the weight of the whole structure of theology. As for the argument from design, see how Darwinian ideas have revolutionized it. Conceived as we now conceive them, as so many fortunate escapes from almost limitless processes of destruction, the benevolent adaptations which we find in Nature suggest a deity very different from the one who figured in the earlier versions of the argument. The fact is that these arguments do but follow the combined suggestions...
Strana 7 - ... unique properties of carbon, hydrogen, and oxygen, and especially of their stable compounds, water and carbonic acid, which chiefly make up the atmosphere of a new planet, should simultaneously occur in the three elements otherwise than through the operation of a natural law which somehow connects them together. There is no greater probability that these unique properties should be without due cause uniquely favorable to the organic mechanism. These are no mere accidents ; an explanation is to...
Strana 7 - There is, in truth, not one chance in countless millions of millions that the many unique properties of carbon, hydrogen, and oxygen, and especially of their stable compounds, water and carbonic acid, which chiefly make up the atmosphere of a new planet, should simultaneously occur in the three elements otherwise than through the operation of a natural law which somehow connects them together.
Strana 7 - Nature produces those things which, being continually moved by a certain principle contained in themselves, arrive at a certain end."- What this internal moving * principle is remains to be discovered.
Strana 34 - The amount of calcium carbonate in the oceans cannot be used as a basis for an estimate of their age, since some of it is precipitated upon reaching the salt water, and much of it is used by animals and plants for their skeletons and shells. MOVEMENT OF THE WATER Wave Motion. — Since marine erosion...