Coloured scanning electron micrograph (SEM) of Photocomposite of the three common types of bacterial morphology, coccus, bacillus, spirillum. Spherical bacteria include Streptococcus sp. and Staphylococcus sp., rods include Escherichia sp. and Bacillus sp., and spirals include Leptospira sp. and Spirillum sp. Magnification: x800 when shortest axis printed at 25 millimetres.
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