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Insects as Natural Enemies: A Practical Perspective - Google Books

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Over the past three decades there has been a dramatic increase in theoretical and practical studies on insect natural enemies. The appeal of insect predators,...

Nordic Research Cooperation on Reproductive Disturbances in Fish:...

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Fullst.tit. Nordic Research Cooperation on Reproductive Disturbances in Fish. Undertit.: report from the Redfish project. Engelsk tekst.

A Natural History of the British Lepidoptera: A Text-book for...

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For many years the female of Apterona cremilella {Psyche lielix) only was known, 0 and Siebold, to make sure that none of the " wingless and footless moths " were males, dissected many. He satisfied himself that all were females, and their unfertilised eggs were found to develop lame in the same year. In 1795, Constans de ...

Darwin and Modern Science: the Evolution - A. C. Seward - Google Books

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PREFACEAt the suggestion of the Cambridge Philosophical Society, the Syndics of the University Press decided in March, 1908, to arrange for the publication of...

Science from an Easy Chair - Sir Edwin Ray Lankester - Google Books

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The plant-lice " naturally " reproduce through the summer by unfertilised eggs producing only females, but in the first cold of autumn males are hatched from some of the eggs, and the eggs of this generation are fertilised and bide through the winter, hatching in the following spring. Some few moths and flies also reproduce ...

Text-book of Comparative Anatomy - Arnold Lang - Google Books

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Studies how the Native Americans' identities and relationship with nature are depicted in literature and film, and discusses how Native Americans are portrayed...

The Entomologist's Record and Journal of Variation - Google Books

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In 1795, Constans de Castellet, General Inspector of the silk industry in Sardinia, reported to Eeaumur that he had reared caterpillars from unfertilised eggs of the silkworm moth. " Ex nihilo nihil fit " was Eeaumur's short and sceptical reply. Herold, in 1838, reported that amongst the eggs of an unfertilised silkworm moth, ...

chemical embryology - Google Books

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material he showed that the egg-Breis of unfertilised eggs respired rather more strongly than the intact unfertilised eggs themselves, but that the reverse relation held true of fertilised eggs. What was very important was the demonstration that, though there was a difference of 500 to 700 per cent, between the respiratory rates ...

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