The Principles of Biology, Nide 1Williams & Norgate, 1866 |
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acid Acrogens actions adaptation aggregate altered Amphibia animals arise arrangement assimilation atoms become binary compounds body carbonic carbonic acid cause cells changes chemical colloids combination complex compounds conception constituting continuous contrasts creatures crustaceans crystalloids Darwin definite degree differentiation direct displayed distinct divergence effects embryo environment equilibration ethereal waves evidence exhibit exist external extreme facts fertilized germ functions further gamogenesis genesis greater groups growth habitats habitually heat Hence heterogeneity higher Hydrozoa hypothesis of evolution implies incident forces increase individuals Infusoria inorganic kind less living mammals manifest mass ment modes modifications molecular mobility motion moving equilibrium multiplication muscles natural selection nitrogenous nutriment nutrition offspring organic matter oviparous ovum oxygen parent parthenogenesis peculiarity phenomena physiological units plants produced Protozoa races re-actions re-distribution relations result similarly special creations species stamens structure substances successive temperature tion tissues truth types undergo unlike variations vertebral Vertebrata vital