Billions of harmless Escherichia coli bacteria thrive in the human gut, but why aren't the microbes flushed out of the intestines through digestion? Bacteria like E. coli produce pili, appendages resembling long strands of ...
3 hours ago in Cell & Microbiology
The quality of a homework assignment is important to student achievement, a Stanford scholar says.
Oct 01, 2015 in Social Sciences