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Hydrostatic movement in coelenterata |
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Answer» ONG>Explanation: Many ANIMALS with a wormlike cylindrical body have a hydrostatic SKELETON with a flexible skin and a water-filled body cavity (coelom or pseudocoelom). They MOVE by peristalsis, using opposed circular and longitudinal muscles, which act on the hydrostatic skeleton to CHANGE the body's shape. DEADSOUL |
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