The use of signal and receptor molecules to facilitate quorum sensing is important to which of the following? a) transformation b) chemotaxis c) transcription d) biofilm formation

D.) biofilm formation
Many species of bacteria use quorum sensing to coordinate gene expression according to the density of their local population. In similar fashion, some social insects use quorum sensing to determine where to nest.
In addition to its function in biological systems, quorum sensing has several useful applications for computing and robotics.