All of the following are steps in the formation of a biofilm EXCEPT ____________.
A) colonizing bacteria attach to surfaces coated with organic material using their fimbriae and capsules
B) As the colonizing bacteria secrete proteins and oligosaccharides or release DNA fragments, a sticky extracellular matrix forms
C) A new wave of microorganisms, enriched in bacteriophages, arrives and attaches to the matrix
D) Some microbes in mature biofilms break free and float
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