Bacteria are also able to communicate with each other through chemical signals, a behavior known as quorum signaling (QS). These chemical signals spread through a biofilm that colonies of bacteria form after they reach a certain density, and are used to help the colonies scavenge food, as well as defend against threats, like antibiotics. Researchers examined how different structures affects biofilm growth and QS by the bacteria in the presence of antibiotics. They found structure does have an effect on QS in some strains of the bacteria.
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