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Bacterial cell structures labeled on a bacillus cell with nucleoid DNA and ribosomes. External structures include the capsule, pili, and flagellum.
Different color, size and type colonies of bacteria from public hall air on a petri dish (agar plate) isolated on black background. Trypticase soy agar (TSA) used. Focus on full depth.
Bacteria cells science 3d illustration
Bad bacteria set isolated on white background. Microorganisms vector illustration.
A gloved hand takes water into a test tube from a city reservoir. Urban waste water. Sampling from open water. Scientist or biologist takes a sample of water into a test tube.

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