| http://www.w3.org/ns/prov#value | - They bind to multiple olfactory receptors with differing affinity, ie. there is no Vanilla receptor, or Rose receptor, but the combination of binding to multiple receptors causes a cascade of electrical signals to go to the brain where it is 'interpreted' There are about 900 olfactory related genes identified in humans, dogs and other canines have many more and can detect smells 10,000 weaker
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