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| Description: Water is drawn into the gastrovascular cavity through the mouth. When the cavity is filled and mouth is closed, muscles can act on the trapped fluid and alter body shape. Circular muscles ring the body; longitudinal ones run the length of the body. One anemone inflated with water (left) and another that has expelled water from the gastrovascular cavity and pulled in its tentacles (right). Picture Stats: Views: 67 Filesize: 511.14kB Height: 961 Width: 1488 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=47589 |