ScienceJohn Michels (Journalist) 1939 |
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Page 148
... species feed on cucurbits , usually on native palearctic species , and one of these may on occasion attack potato foliage when its preferred food plants are absent , but no European species are known to feed on legumes . Further ...
... species feed on cucurbits , usually on native palearctic species , and one of these may on occasion attack potato foliage when its preferred food plants are absent , but no European species are known to feed on legumes . Further ...
Page 207
... species or that , they are speedily made aware of the fact by the non - systematic biologist for whom they are engaged in making identifications . If , on the other hand , their species concepts are narrow and result in more numerous ...
... species or that , they are speedily made aware of the fact by the non - systematic biologist for whom they are engaged in making identifications . If , on the other hand , their species concepts are narrow and result in more numerous ...
Page 244
... species in the region it now occupies . The difference between the tenets of Darwin and Agassiz hinges on a cardinal difference in the definition of organic species or , as Darwin himself put it , on the question , " What are species ...
... species in the region it now occupies . The difference between the tenets of Darwin and Agassiz hinges on a cardinal difference in the definition of organic species or , as Darwin himself put it , on the question , " What are species ...
Contents
40 | 4 |
Fishes Viviparous Cyprinodont C L TURNER | 42 |
ADAMS R W A Noyes Laboratory of Chemistry_71 | 65 |
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