Coloured scanning electron micrograph (SEM) of Bacillus versus Coccus bacteria morphology. Fusobacterium sp., Gram-negative, anaerobic, non-motile, bacillus prokaryote (characterized by a long, slender shape and pointed ends). Streptococcus sp.- Gram-positive coccus prokaryote. Magnification: x5,000 when shortest axis printed at 25 millimetres.
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