Mast, Samuel Ottmar, 1871- · New York, J. Wiley · leaf 239
4. Caprella What can be said with regard to orientation in thehigher forms with eyes incapable of forming images ^ Suchanimals are of course not able to see. They cannot follow 224 LIGHT AND THE BEHAVIOR OF ORGANISMS an object because of its size or orm. The eyes functionmerely in distinguishing… … Fig. 32. Camera outline of Caprella sp. (?). A, dorsal view; B, side view,showing the extent of bending during locomotion. See text. their relative intensity, indicating that orientation is notregulated by the same factors as in the toad. An idea of the general form and structure of the form…
Light -- Physiological effect · Phototropism
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