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