The New Encyclopaedia Britannica: Macropaedia: knowledge in depth. 19 vEncyclopaedia Britannica, Incorporated, 1981 - Encyclopedias and dictionaries |
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Page 127
... animals , as well as living things in which specific micro - organisms , added by experimental methods , are known to be pres- ent . When one or more known species of micro - organ- isms are added experimentally to a germfree plant or ...
... animals , as well as living things in which specific micro - organisms , added by experimental methods , are known to be pres- ent . When one or more known species of micro - organ- isms are added experimentally to a germfree plant or ...
Page 129
... animal becomes an experimental base , or control animal ; animals containing micro - organisms are in a more complex experimental condition . METHODS Isolation . Physical methods of isolating a desired or- ganism from a group of micro ...
... animal becomes an experimental base , or control animal ; animals containing micro - organisms are in a more complex experimental condition . METHODS Isolation . Physical methods of isolating a desired or- ganism from a group of micro ...
Page 130
... animals can be questioned since radiation is known to activate viruses in all germfree mice and in some strains of germfree rats . Oral inoculation of germfree animals with one or more pure cultures of micro - organisms is used to study ...
... animals can be questioned since radiation is known to activate viruses in all germfree mice and in some strains of germfree rats . Oral inoculation of germfree animals with one or more pure cultures of micro - organisms is used to study ...
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animals areas army Austria basins Bavaria became Berlin BIBLIOGRAPHY British central centre century Christian church cities clubs colour cultural Democrats deposits dialects early East eastern economic El Greco elected electors Emperor empire English Europe Federal force France Frederick French Frisian German Germany's germfree geyser Ghana glacial glacier glass Gnostic Goethe gold golf grammar grasslands gravitational graywackes Greece Greek Habsburg Icelandic imperial important industry Italy king known Lake land language later major mass ment metres modern mountain Netherlandic North Old Frisian Old Norse origin painting Party percent period player Pleistocene political population princes produced Proto-Germanic Proto-Indo-European Prussia reform regions Reich Republic Rhine river rock Roman Saxony social soil sources Soviet species surface temperature territorial tion traditional trans U.S. Open United valley vowels West Germany western