T

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Across
  1. 2. The most recent of the five basic tastes discovered.
  2. 5. The rough folded structures on the tongue's surface where taste buds reside.
  3. 6. The ions that trigger an action potential in the taste buds for acidic foods.
Down
  1. 1. The biological term for tasting.
  2. 3. Not one of the five basic tastes.
  3. 4. The taste that serves to protect from ingesting poisonous foods.