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  1. Blood, light micrograph
  2. 15th century surgical equipment, artwork
  3. Broadclub cuttlefish
  4. Test Tube Experiment
  5. 19th-century mining machine
  6. Neck and facial nerves
  7. Buckminsterfullerene
  8. Chemicals and rock samples in Darwin's study
  9. Illustration of muscle contraction
  10. Anthrax bacteria
  11. Close-Up of Molecular Structure Diagrams
  12. AIDS pneumonia infection, TEM
  13. Illustration of action potential of a nerve cell
  14. Blood samples
  15. Build-up of atherosclerotic plaque in an artery
  16. Solar cell
  17. Anatomy of human eye
  18. Surgeon in operating room
  19. Di(2-ethylhexyl) phthalate
  20. Herceptin breast cancer drug molecule
  21. Acupuncture model
  22. Microscopic view of virus
  23. Edrengiyn Nuruu - USGS Earth as Art
  24. Artwork of bronchodilator action in asthma
  25. Antibiotic mechanism of action, artwork
  26. Digestive system, artwork
  27. Artist's impression of Tyrannosaurus rex
  28. 1812 Egyptian Ibis
  29. Genetics of colour blindness, diagram
  30. Oscilloscope trace
  31. Robot picking bacteria containing human DNA
  32. Antibiotic acting on bacteria
  33. Bone death, artwork
  34. Fallopian tube, SEM
  35. Cephalopd eye, artwork
  36. Bacteria infecting a macrophage, SEM
  37. Human tongue surface, SEM
  38. Human immune response, artwork
  39. Group of Escherichia coli bacteria cells, known as E. Coli
  40. Blood vessel anatomy
  41. Alveoli
  42. Sycamore leaf bud, light micrograph
  43. Pipes at Nesjavellir Geothermal Power Plant, Iceland
  44. Pollen grains, SEM
  45. Studio shot of hand holding test tube with liquid
  46. Blood samples
  47. Diamond structure
  48. Antibiotic research