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  1. Tourmaline
  2. Early Earth, artwork
  3. Salmonella, TEM
  4. Sperm bank
  5. Genetic testing
  6. Tongue anatomy
  7. Artwork of a section through the human kidney
  8. Winter's bark (Drimys winteri) pollen, SEM
  9. Vitamin C crystals
  10. Anticoagulant molecule
  11. Ground beetle head, SEM
  12. Feather vane, light micrograph
  13. Guillaume Lemonnier1717-1799
  14. Healthy teeth, artwork
  15. Dissected eye, 1844 artwork
  16. Heart with arteries showing cholesterol in one and plaque in the other
  17. Recording thumbprint
  18. Nerve synapse
  19. Lung blood vessel nerves, 1844 artwork
  20. Heart after heart attack
  21. Marburg virus, TEM
  22. CD4 protein fragment, molecular model
  23. Fertilisation, artwork
  24. Surgeon with arms crossed
  25. Artwork of foetal blood flow through placenta
  26. Art of section through human eye showing glaucoma
  27. Microbiology research
  28. Syringes
  29. 5d electron orbitals
  30. Skin tissue, SEM
  31. Biofuel research
  32. Ovarian cycle, artwork
  33. Platelet activation, artwork
  34. Museum Wormianum, historical engraving
  35. Prescription
  36. Doctors examining MRI scans
  37. Rice Terraces, Longsheng Ping'an, Guangxi
  38. pH measurement of oxide solutions
  39. Microscopic view of Listeria monocytogenes
  40. Dilute hydrochloric acid reactions
  41. Helicobacter pylori bacteria, SEM
  42. Chemistry apparatus
  43. Bladder cancer cells dividing, SEM
  44. Blood vessel
  45. Cut artery, artwork
  46. Insulin molecule, computer artwork
  47. Gloved hands pipetting a liquid into a vial
  48. Cell cultures