. Behavior of the lower organisms. Animal behavior; Invertebrates. THE BEHAVIOR OF INFUSORIA; PARAMECIUM 97 shows that as soon as they reach the boundary of the area of carbon dioxide, they give the avoiding reaction, in the usual way, and pass back into the area. Here they become oriented again by the electric current, and pass again to the boundary, where they react as before. Thus the reaction to the electric current prevails until a region of a sudden change in chemical character is reached; the reaction to this then supplants the reaction to the current. If the current is reversed, the an
. Behavior of the lower organisms. Animal behavior; Invertebrates. THE BEHAVIOR OF INFUSORIA; PARAMECIUM 97 shows that as soon as they reach the boundary of the area of carbon dioxide, they give the avoiding reaction, in the usual way, and pass back into the area. Here they become oriented again by the electric current, and pass again to the boundary, where they react as before. Thus the reaction to the electric current prevails until a region of a sudden change in chemical character is reached; the reaction to this then supplants the reaction to the current. If the current is reversed, the animals gather in the same way at the opposite side of the area of carbon dioxide (Fig. 68, C). If the current is made very powerful and is long continued,. 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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