. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. BEHAVIOR OF BUDS IN ASCIDIANS 455 same time, all the Imcls hut one were also removed, and the behavior of the remaining hud \vas followed. A total of nine operations of this type were made. Experiment I'll The result of Experiment IV suggested that the attractant is secreted not only by budding zooids but also by nonbudding zooids. Consequently, Experiment VII was designed to find out whether a grown (nonbudding) zooid has the potency to attract buds produced by other zooids in the same colony. For the convenience of observa


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. BEHAVIOR OF BUDS IN ASCIDIANS 455 same time, all the Imcls hut one were also removed, and the behavior of the remaining hud \vas followed. A total of nine operations of this type were made. Experiment I'll The result of Experiment IV suggested that the attractant is secreted not only by budding zooids but also by nonbudding zooids. Consequently, Experiment VII was designed to find out whether a grown (nonbudding) zooid has the potency to attract buds produced by other zooids in the same colony. For the convenience of observation, all the zooids but two were removed from the colony. After the operation the two remaining zooids came together, and a small colony consisting of only two zooids was formed. It was known that budding in a colony does not occur synchronously. In the present case, therefore, one zooid was expected to make buds earlier than the other, and we could hope to study the attractive influence of a nonbudding zooid to buds produced by the FIGURE 2. Behavior of buds in Experiment IV. Successive stages (A-E) in one of the minor cases are viewed from the ventral side. Bud identification numbers and days before or after budding are indicated as in Figure 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology