SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY
Cancer cells, coloured scanning electron micrograph (SEM). Cancerous (malignant) cells divide rapidly and uncontrollably and are able to invade and destroy surrounding tissue. These cells are showing numerous blebs (lumps) and microvilli (hair-like structures), which are characteristic of cancer cells.
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