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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. Cell
  7. Scanning electron micrograph of a human neutrophil ingesting MRSA
  8. Cell
  9. Multiphoton fluorescence image of HeLa cells
  10. Conceptual image of DNA
  11. Laboratory vessels on drying rack
  12. Cell
  13. Microscopic view of human B-cells
  14. Synapses, artwork
  15. Volvox colony, light micrograph
  16. Castor oil stem, light micrograph
  17. Conceptual image of mitosis
  18. Conceptual image of neuron
  19. Cardiac muscle, TEM
  20. Colon blood vessels, light micrograph
  21. Cell
  22. Cell
  23. Human anatomy showing deep muscles in the neck and upper back
  24. Cardiac muscle, TEM
  25. Conceptual image of neuron
  26. Pond life
  27. Microscopic view of bacteria
  28. Cardiac muscle and capillary, TEM
  29. Conceptual image of DNA
  30. Cannabinoid receptor binding, artwork
  31. Buttercup stem, light micrograph
  32. Mitochondrion, TEM
  33. Cell
  34. Normal wrist, X-ray.
  35. Dandelion plant stem, light micrograph
  36. Stem cells, artwork
  37. Conceptual image of DNA
  38. C-reactive protein, molecular models
  39. Protozoa, historical artwork
  40. Male Hercules Beetle
  41. Antibody, artwork
  42. Human blood cells, SEM
  43. Cartilage cells, TEM
  44. Sickle cell anaemia
  45. Leukemia blood cells, light micrograph
  46. Colorized scanning electron micrograph of filamentous Ebola virus particles
  47. Conceptual image of DNA
  48. Scanning electron micrograph of Staphylococcus and a dead human neutrophil