. Behavior of the lower organisms. Animal behavior; Invertebrates. ^ e ~^ <0^. 9\ ^^ )a '—4 Fig. q3. — Illustration of the devious path followed by Euglena in becoming oriented when the direction of the light is reversed. From 1 to 2 the light comes from above; at 2 it is reversed. The amount of wandering (a-h) varies in different cases. the lighted area, it gives the typical avoiding reaction; it backs, turns' toward the dorsal side, and thus reenters the lighted area. This reac- tion frequently occurs as soon as the anterior tip is pushed into the shade. In other cases the reaction does n
. Behavior of the lower organisms. Animal behavior; Invertebrates. ^ e ~^ <0^. 9\ ^^ )a '—4 Fig. q3. — Illustration of the devious path followed by Euglena in becoming oriented when the direction of the light is reversed. From 1 to 2 the light comes from above; at 2 it is reversed. The amount of wandering (a-h) varies in different cases. the lighted area, it gives the typical avoiding reaction; it backs, turns' toward the dorsal side, and thus reenters the lighted area. This reac- tion frequently occurs as soon as the anterior tip is pushed into the shade. In other cases the reaction does not occur till the Euglena has passed. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Jennings, H. S. (Herbert Spencer), 1868-1947. New York, The Columbia university press, The Macmillan company, agents; [etc. , etc. ]
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanimalbehavior, booky
