ScienceJohn Michels (Journalist) 1951 |
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Стр. 14
... biological control . Replacement control and biological control are similar in that both employ natural means , and both require man's intervention to create conditions favorable for the restrictive process to begin its course . In ...
... biological control . Replacement control and biological control are similar in that both employ natural means , and both require man's intervention to create conditions favorable for the restrictive process to begin its course . In ...
Стр. 172
... biological sciences . No graduate student of biology even attempts to learn thoroughly all the information thus presented to him and , in fact , the biophysical information is often made easy to skip by being printed in small type ...
... biological sciences . No graduate student of biology even attempts to learn thoroughly all the information thus presented to him and , in fact , the biophysical information is often made easy to skip by being printed in small type ...
Стр. 173
... biological sciences , because of the active demand for physicists , and the discrepancy is not likely to dis- appear in the near future . Moreover , the physicist does not ordinarily acquire a " biological turn of mind . " He is ...
... biological sciences , because of the active demand for physicists , and the discrepancy is not likely to dis- appear in the near future . Moreover , the physicist does not ordinarily acquire a " biological turn of mind . " He is ...
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