Which of the following is not generally true about biofilms?
A) They may be considered microbial communities
B) The organisms in them do not share nutrients
C) They are much more resistant to drugs, in particular microbicides
D) They usually begin when a free‐swimming bacterium attaches to a surface
E) The CDC estimates that 70% of human bacterial infections involve biofilms
Answer: B) The organisms in them do not share nutrients
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