Scientific Discoveries and Inventions 23

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Across
  1. 1. "An instrument for measuring blood pressure."
  2. 5. "A method to measure how much a chemical substance absorbs light."
  3. 8. "A treatment method using extremely cold temperatures."
  4. 10. "A chemical substance that transmits nerve impulses across a synapse."
  5. 11. "The study of cellular lipids on a large scale."
  6. 12. "The branch of geology dealing with the study of rocks."
  7. 13. "The process by which living organisms produce minerals."
  8. 16. "The study of the interaction between matter and electromagnetic radiation."
  9. 17. "A protein involved in cell signaling, especially in immune responses."
  10. 18. "The dissociation of molecules by ionizing radiation."
  11. 20. "The study of ancient life through fossils."
Down
  1. 2. "A technique for separating molecules based on size and charge."
  2. 3. "A plant adapted to survive in dry environments."
  3. 4. "A symbiotic association between fungi and plant roots."
  4. 6. "The metabolic process that produces glucose from non-carbohydrate sources."
  5. 7. "The study of toxic effects on ecosystems and organisms."
  6. 9. "The use of imaging techniques to diagnose and treat diseases."
  7. 14. "The study of disease distribution and determinants in populations."
  8. 15. "The study of human societies, cultures, and their development."
  9. 19. "A chemical reaction involving the breakdown of a compound by water."