Thousands of Measurements (IMAGE) Washington State University Caption Washington State University biologist Michael Knoblauch made hundreds of thousands of measurements in three morning glories to test an 86-year-old hypothesis of how nutrients flow through plants. Credit Washington State University photo 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.