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Keywords from Image Description:
Biological atlas Plate . FRESH WATER POLYPE HYDRA PLATE Fig flvctra or Common Hydra Ifiy Hydra fo iffL dryj Longitudinal Section Hydra Tentacles Fid CdU oiihe Ectoderm udais Jffouth NtmaiotystfS cto dfsrn ErLdocLerrn SpeTtnatffxoc Segmented avnjn socaUed eyQ Tnbryo cells Diagram Development of Hydrozoa Section