Do You Really Lose Most Body Heat Through Your Head?

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Across
  1. 4. The branch of biology dealing with the functions of living organisms.
  2. 7. Expose the falseness of a myth or idea.
  3. 8. The quality of being very determined; persistence.
  4. 9. Traditional beliefs and stories of a community.
  5. 12. Seeming to be present everywhere.
  6. 13. Having a harmful effect, often subtly.
  7. 14. To issue or spread out from a source.
  8. 16. A firm warning or reprimand.
  9. 17. The most vital or decisive point.
  10. 20. Corresponding in size or amount to something else.
Down
  1. 1. Very cold in temperature.
  2. 2. Appearing reasonable or probable.
  3. 3. A proverb expressing a general truth (synonym for 'saying').
  4. 5. A short, memorable extract from a speech.
  5. 6. An animal that is warm-blooded.
  6. 10. Situated or applied under the skin.
  7. 11. A confident and forceful statement.
  8. 15. A subtle difference in meaning or expression.
  9. 18. In a way that leaves no doubt.
  10. 19. To transform gradually.