Loan Words

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Across
  1. 2. One piece of nature's Jenga tower in your back
  2. 4. Reference system for finding information
  3. 6. Math's way of organizing numbers in neat boxes
  4. 8. Classification rank between family and species
  5. 9. Book's "where to find the good bits" guide
  6. 11. The bossy organelle running the cellular show
  7. 14. Multiple arrays of ordered elements
  8. 19. Electric shock that makes a dead frog's legs dance
  9. 20. Nature's bicycle spokes in a circle
  10. 22. Ancient scholars' way of describing patterns
  11. 23. Additional reference sections in publications
  12. 24. A body of knowledge that needs a diet
  13. 25. Nature's recipe written in mathematical poetry
  14. 26. Bug's fashion stuff sticking out of head
  15. 28. Numbers that tell a story (or lie convincingly)
Down
  1. 1. Rectangular arrangements of numbers
  2. 3. Supplementary materials in academic works
  3. 5. Geological sandwich with rocks instead of ham
  4. 7. Mathematical pointers in equations
  5. 8. Groups of related living things
  6. 10. Fancy way of saying "Oops!"
  7. 11. Tiny cellular control rooms having a party
  8. 12. Earth's layer cake slice
  9. 13. What makes your brain go "Ooh, shiny!"
  10. 15. List of discoveries after publication
  11. 16. Insect WiFi receivers
  12. 17. Stack of bones keeping you from being a puddle
  13. 18. Latin fancy talk for "bunch of stuff"
  14. 21. Half the diameter for lazy mathematicians
  15. 25. Common patterns that explain the world
  16. 26. Extra chapter at the back of the book
  17. 27. Lonely number looking for friends