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Chapter 15: The Chemical Senses. Overview of Questions. Why is a dog's sense of smell so much better than a human's?Why does a cold inhibit the ability to taste?How do neurons in the cortex combine smell and taste?. Gatekeeper Function. Smell and taste are closely tied an with affective and/or emotional component(s)Identification of things necessary for survivalIdentifying and rejecting things that would be bad.
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