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Titlebook: Animal Life in Fresh Water; A Guide to Fresh-Wat Helen Mellanby Book 1963 Helen Mellanby 1963 evolution.invertebrates.physiology.Model inve

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發(fā)表于 2025-3-21 19:29:48 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
期刊全稱Animal Life in Fresh Water
期刊簡稱A Guide to Fresh-Wat
影響因子2023Helen Mellanby
視頻videohttp://file.papertrans.cn/158/157605/157605.mp4
圖書封面Titlebook: Animal Life in Fresh Water; A Guide to Fresh-Wat Helen Mellanby Book 1963 Helen Mellanby 1963 evolution.invertebrates.physiology.Model inve
影響因子by Professor L. E. Eastham Formerly Professor of Zoology in the University of Sheffield Most books are written with the intention of supplying some particular need, but few end with such single purpose. Mrs. Mellanby‘s is no exception, for while the author planned this work to serve as a guide to the school pupil, which function it fulfils in an admirable way, it will also prove of value to the teacher, the university student and the amateur naturalist. While it may be argued that it is not the function of the Uni- versities to teach Natural History in the commonly accepted sense, it will always be the aim of Zoologists to know more about animals, what they are and do, where they live and why they live in particular environments. It is unfortunate, in view of the fact that the majority of students of Zoology enter the teaching pro- fession, that the increasing load of instruction in morphology, physiology, cytology, genetics, evolution and the like frequently makes a personal study of animal life in relation to environment almost impossible. The fortunate ones visit the sea for a fort- night‘s course in Marine Ecology; the others take posts in schools without even this respite and
Pindex Book 1963
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發(fā)表于 2025-3-22 00:13:34 | 只看該作者
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發(fā)表于 2025-3-22 03:21:48 | 只看該作者
Introduction,This book is intended to help all who are interested in freshwater animal life to identify the animals which they find, and to discover more about their ways of living. I hope that it will be useful to people of school age as well as to more serious students of Natural History.
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發(fā)表于 2025-3-22 06:55:43 | 只看該作者
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發(fā)表于 2025-3-22 08:55:57 | 只看該作者
https://doi.org/10.1007/978-94-009-5849-4evolution; invertebrates; physiology; Model invertebrates
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發(fā)表于 2025-3-22 14:48:08 | 只看該作者
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發(fā)表于 2025-3-22 20:53:07 | 只看該作者
Heinrich Walter,Siegmar-W. Breckleon, a fold of the body wall (mantle) outside which is usually a hard external shell. Inside this the whole animal can be withdrawn. Most of the fresh-water forms are reasonably large so that their habits can be studied in a laboratory or classroom without the aid of a microscope; many species live well in an aquarium.
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發(fā)表于 2025-3-22 21:44:02 | 只看該作者
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發(fā)表于 2025-3-23 02:17:53 | 只看該作者
The Mollusca,on, a fold of the body wall (mantle) outside which is usually a hard external shell. Inside this the whole animal can be withdrawn. Most of the fresh-water forms are reasonably large so that their habits can be studied in a laboratory or classroom without the aid of a microscope; many species live well in an aquarium.
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發(fā)表于 2025-3-23 08:28:15 | 只看該作者
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