26:06From the PhD Lab: How do biofilms help keep bacteria alive? - with Josh Horton
The Royal Institution
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/economics-finance-domain/ap-microeconomics/basic-economic-concepts/16/v/equalizing-marginal-utility-per-dollar-spent Why the marginal utility for dollar spent should be theoritically equal for the last increment of either good purchased More free lessons at: http://www.khanacademy.org/video?v=KbW6OiuRa1Y
Published 2012-01-16 · Watch on YouTube ↗
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