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  1. Scanning electron micrograph of a human T cell
  2. Glial cells, confocal light micrograph
  3. Mitochondria, TEM
  4. Typical Animal Cell and Plant Cell
  5. Lung cells, fluorescent micrograph
  6. Multiphoton fluorescence image of HeLa cells
  7. Scanning electron micrograph of a human neutrophil ingesting MRSA
  8. Cell
  9. Cell
  10. Cell
  11. Conceptual image of DNA
  12. Microscopic view of human B-cells
  13. Synapses, artwork
  14. Volvox colony, light micrograph
  15. Conceptual image of neuron
  16. Cardiac muscle, TEM
  17. Conceptual image of mitosis
  18. Colon blood vessels, light micrograph
  19. Cell
  20. Laboratory vessels on drying rack
  21. Cardiac muscle, TEM
  22. Castor oil stem, light micrograph
  23. Pond life
  24. Conceptual image of DNA
  25. Normal wrist, X-ray.
  26. Human anatomy showing deep muscles in the neck and upper back
  27. Antibody, artwork
  28. Microscopic view of bacteria
  29. Cardiac muscle and capillary, TEM
  30. Cell
  31. Cannabinoid receptor binding, artwork
  32. Cell
  33. Dandelion plant stem, light micrograph
  34. Stem cells, artwork
  35. Conceptual image of neuron
  36. Scanning electron micrograph of HIV particles infecting a human H9 T cell
  37. Conceptual image of DNA
  38. Colorized scanning electron micrograph of filamentous Ebola virus particles
  39. Cartilage cells, TEM
  40. Mitochondrion, TEM
  41. Leukemia blood cells, light micrograph
  42. Scanning electron micrograph of Staphylococcus and a dead human neutrophil
  43. Sickle cell anaemia
  44. Conceptual image of DNA
  45. Protozoa, historical artwork
  46. Evolution of life, artwork
  47. Bracken rhizome, light micrograph
  48. Chain Of Molecules