Biology
Origin, growth, reproduction, structure, and behavior of living organisms.
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Darwin, Mice, and Picky Peacocks
Natural selection at work.
License: Creative Commons BY-NC-SA
More information at http://k12videos.mit.edu/... -
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Bread Mold Kills Bacteria
Witness the war between mold and bacteria. Mold's weapon, antibiotics, cures infections, while bacteria fights back with resistance. Here is a demonstration, in my basement,...
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Polymerase Chain Reaction: Making Copies of DNA
What is PCR and what is it used for? Learn the step-by-step process for generating thousands of copies of the same DNA sequence.
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