<I>Acetabularia acetabulum</I> (1 of 2) (IMAGE) University of Plymouth Caption A photo of Acetabularia acetabulum taken in low CO2 conditions. Credit Jason Hall-Spencer Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.