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