ChemMatters Teacher's Guide

METH : cell d3>c2> d1>d2. ETH: c2>d1>d2 . PROP: c1>b1>a1>b2 ... As a result of cold, the muscles that surround each hair follicle contract, causing the hair to stand on end. In an animal covered with hair (as humans may once have been), the result is the trapping of air between all the upright hairs. ... could be used as a starting point for ... ................
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