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Across
  1. 2. Tectonics: Geological theory of moving crustal plates.
  2. 4. The gradual change and diversification of species.
  3. 6. The basic structural unit of life.
  4. 10. A molecule storing genetic code
  5. 11. The regulation of a stable internal state.
  6. 14. A group of atoms bonded together.
  7. 15. Process by which plants create energy from light.
Down
  1. 1. The direct transition from solid to gas.
  2. 3. The tendency of an object to resist changes in motion.
  3. 5. upward force exerted by fluids.
  4. 7. A biological catalyst, usually a protein.
  5. 8. Energy: The energy possessed by moving objects.
  6. 9. The fundamental particle of matter.
  7. 12. An interactive community of organisms and their environment.
  8. 13. The force of attraction between objects with mass.