Mast, Samuel Ottmar, 1871- · New York, J. Wiley · leaf 193
Fig. 27. The lines i, 2, etc., \n A, B, C, D, represent courses taken by fourdifferent blow-fly larvae in light of 78 ca. m. intensity, n, direction of horizontalrays from single Nernst glower. Orientation is not as accurate as one would ex-F)ect if light acts constantly as an orienting stimulus in…
Light -- Physiological effect · Phototropism
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