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| Description: Physiologist Frank Salisbury kept this plant in darkness for twenty-four hours. Despite the lack of light cues, the leaves kept on folding and unfolding at sunrise (6 a.m.) and sunset (6 p.m.). Picture Stats: Views: 139 Filesize: 35.57kB Height: 180 Width: 1500 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=47785 Keywords: Rhythmic Leaf Movements of a Bean Plant |