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Thinking Scientifically
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  1. The density of taste buds on the tongue can vary. Some obese individuals have a lower density of taste buds than those who are not obese. Assume that taste perception is related to taste bud density. If so, what hypothesis would you test to see if there is a relationship between taste bud density and obesity?
  2. A man who has spent many years serving on submarines complains hearing loss, particularly the ability to hear high tones. When a submarine submerses, the inside air pressure intensifies. What hypotheses might explain hearing loss in this individual?

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