Deprived of oxygen, layers of bacteria get creative – Phys.org

Bacteria are found living nearly everywhere on our planet, from the inside of human intestines to the soil to deep underwater. When scientists study bacteria in the lab, they most often examine individual bacterial cells as they grow rapidly in liquid cultures. However, bacteria in nature usually exist in the form of structures called biofilmsdense populations of cells attached to each other and to surfaces with a matrix of sticky goo.
To conserve energy, bacterial cells normally remove electro…

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