Metabolic Activity of Microbial Species (IMAGE) Helmholtz Association Caption A decimal place slope is a fast and precise method for quantifying 13C incorporation levels for detecting the metabolic activity of microbial species. Credit Stephan Boehme/UFZ 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.