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  1. Paramecium protozoa, light micrograph
  2. Microscopic view of cell and virus
  3. DNA
  4. Male muscles, artwork
  5. Group of Escherichia coli bacteria cells, known as E. Coli
  6. Man and Machine
  7. Wind turbine in rural location with old barn in Cavalier County, USA
  8. Anatomy of human face and neck muscles, front view
  9. Star Collector I
  10. Bladder cancer cells dividing, SEM
  11. Copper sulphate crystals, LM
  12. Spirogyra algae, light micrograph
  13. Respiratory system, artwork
  14. New Mexico - USGS State Mosaic
  15. New Hampshire - USGS State Mosaic
  16. Lung blood vessel nerves, 1844 artwork
  17. Molecule Glucose
  18. Anterior view of human pelvis, with labels
  19. Cell
  20. Ghostly Grease Ice - USGS Earth as Art
  21. xDNA molecule
  22. Ice Stars - USGS Earth as Art
  23. Microbiology research
  24. Louis Pasteur, French microbiologist
  25. Spinosaurus
  26. Variety Of Flasks
  27. Chloroform analysis, 19th century artwork
  28. Close-up of beakers containing colored liquid
  29. Pictorial plaque on Pioneer 10 and 11
  30. Mineralogie III
  31. Porphyromonas oral bacteria, TEM
  32. Jordan - USGS Earth as Art
  33. Pantometer, 16th Century
  34. 14th century theological cosmography
  35. Human tooth anatomy, diagram
  36. Male Hercules Beetle
  37. Universal harmony, 17th century artwork
  38. Back deformities
  39. Variety Of Flasks
  40. HIV particles, TEM
  41. Calabai-yau manifolds
  42. Marsupials
  43. Ear anatomy
  44. The Pharmacist
  45. Influenza C virus, TEM
  46. Hughes' printing telegraph
  47. Stages in female human evolution
  48. The musculoskeletal system