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File:Elementary biology; an introduction to the science of life (1924) (21026575410).jpg

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Title: Elementary biology; an introduction to the science of life
Identifier: elementarybiolog00grue (find matches)
Year: 1924 (1920s)
Authors: Gruenberg, Benjamin C. (Benjamin Charles), 1875-1965
Subjects: Biology
Publisher: Boston New York (etc. ) Ginn and company
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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not at all. In this way some tiny picture of a portion of the outside world is formed inside of each of the many eyes, and thus a mosaic of impressions is produced on nerve cells of the animal's brain. The images produced in the parts of the compound eye of an insect or a lobster are probably not very distinct; but as the animal gets many simultaneous views from somewhat different angles (a compound eye may have from twenty to several thousand separate facets), the organ is excellently adapted to detecting slight movements. In insects the eyes are immovable, but most of them are able to see the movements of an object or of a light from practically all directions, though not at a very great distance.

Text Appearing After Image:
Fig. 95. Light-perceiving organs among the mollusks
In the scallop, A, and in other bivalves, there is a row of eyespots along the edge of the mantle. In the snails, B, there is a more developed eye, frequently on the end of a stalk. The octopus, C, has a pair of eyes similar in many respects to the eyes of backboned animals

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https://www.flickr.com/photos/internetarchivebookimages/21026575410/

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Flickr tags
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  • bookid:elementarybiolog00grue
  • bookyear:1924
  • bookdecade:1920
  • bookcentury:1900
  • bookauthor:Gruenberg_Benjamin_C_Benjamin_Charles_1875_1965
  • booksubject:Biology
  • bookpublisher:Boston_New_York_etc_Ginn_and_company
  • bookcontributor:MBLWHOI_Library
  • booksponsor:MBLWHOI_Library
  • bookleafnumber:251
  • bookcollection:biodiversity
  • bookcollection:MBLWHOI
  • bookcollection:blc
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
7 September 2015


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