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Arthur Milnes Marshall:A Junior Course of Pracical Zoology
- gebrauchtes Buch ISBN: 9781443263818
Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. Excerpt from book: Section 314 Chapter II. HYDEA. Hydba is… Mehr…
Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. Excerpt from book: Section 314 Chapter II. HYDEA. Hydba is a small freshwater animal, abundant in ponds and ditches, and in slowly-moving streams. It consists of a tubular body about a quarter of an inch in length, one end of which is closed while the opposite end is open and forms the mouth, a short distance below which is a circle of tentacles, usually six to eight in number. Both the tentacles and the body are extremely contractile. The former, when the animal is disturbed, can be almost completely withdrawn, and the latter may shrink up so as to become a mere knob or button. Hydra is usually attached by its closed basal end or foot to water-weeds or other bodies. By contractions of the foot it can crawl along slowly, and it can also progress more rapidly by fixing itself alternately by the mouth and foot, arching the body with a looping movement like a caterpillar. It is carnivorous, and by means of the nematocysts with which its tentacles are studded can paralyse and kill animals nearly as big as itself and of active habits. Hydra receives its name from its remarkable power of recovery from injury. A specimen may be cut into two or more pieces, either transversely or longitudinally, and each fragment will not only survive but within a short time will become a complete Hydra. The entire animal may even be regenerated from a single tentacle. At least three species of Hydra are described as occurring commonly in this country. Of these textit{H. viridis is distinguished by its green colour and its smaller size, textit{H. fusca is brown in colour, and textit{H. vulgaris almost colourless. It is uncertain, however, how far these species are really distinct from one another, and the following description will apply to any of them. Fro. 11.?Hydra. A diagrammatic longitudinal section of a specimen with rip... , libri, Kartoniert / Broschiert<
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Arthur Milnes Marshall:A Junior Course of Pracical Zoology
- neues Buch ISBN: 9781443263818
This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have oc… Mehr…
This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. Books Books Junior-Course-Of-Pracical-Zoology~~Arthur-Milnes-Marshall General Books LLC This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Original Published by: Smith, Elder in 1892 in 521 pages; Subjects: Zoology; Juvenile Nonfiction / Animals / General; Juvenile Nonfiction / Science & Nature / Zoology; Nature / General; Nature / Animals; Nature / Wildlife; Science / Life Sciences / Zoology / General;<
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(*) Derzeit vergriffen bedeutet, dass dieser Titel momentan auf keiner der angeschlossenen Plattform verfügbar ist.
Arthur Milnes Marshall:A Junior Course of Pracical Zoology
- neues Buch ISBN: 9781443263818
This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have oc… Mehr…
This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. Books, , Junior-Course-Of-Pracical-Zoology~~Arthur-Milnes-Marshall, 999999999, A Junior Course of Pracical Zoology, Arthur Milnes Marshall, 1443263818, General Books LLC, , , , , General Books LLC<
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