. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. BUDDING IN HYDRA. 211 the secretion of the digestive fluid, which aids in the breaking up of the food in the enteron, while those endodermal cells in the region of growth, " the formation of buds and sexual organs," are the most active in ingesting the partly digested food from the enteron and preparing it for diffusion into the ectodermal cells. The ectoderm and endoderm in the early formation of the bud, which are quite uniform, soon become differentiated into two dis-. FIG. i. Longitudinal section of hydra showi
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. BUDDING IN HYDRA. 211 the secretion of the digestive fluid, which aids in the breaking up of the food in the enteron, while those endodermal cells in the region of growth, " the formation of buds and sexual organs," are the most active in ingesting the partly digested food from the enteron and preparing it for diffusion into the ectodermal cells. The ectoderm and endoderm in the early formation of the bud, which are quite uniform, soon become differentiated into two dis-. FIG. i. Longitudinal section of hydra showing the origin of bud at a. FIG. 2. Part of preceding figure at a. X 80. FIG. 3. Longitudinal section through wall of hydra showing curvature of mesoglea and beginning of enteron in forming bud. m, mesoglea ; a, enteron. FIG. 4. Stage of development a little later than preceding, a, the point of junction between parent and bud. FIG. 5. A portion of preceding figure at a, which includes the entire area in the formation of bud. end., endoderm. X 90. FIG. 6. Diagram of a longitudinal section of parent hydra with bud. a, active growing region in formation of 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
