26:06Learning
From the PhD Lab: How do biofilms help keep bacteria alive? - with Josh Horton
The Royal Institution
Jonathan talks with callers about Spring Break, a period of time during a school year that many students in the US look forward to every Spring. Originally published at - http://learningenglish.voanews.com/media/video/2692899.html
Published 2015-03-24 · Watch on YouTube ↗
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