Question

fill in the blank question
biofilm bacteria are not affected in the same way as their free-living counterparts by antibiotics because biofilm bacteria express different
and therefore have
different antibiotic sensitivities.
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Explanation:

The question is about biofilm bacteria and their response to antibiotics, related to bacterial physiology and antibiotic sensitivity. In the context of biology (a subfield of Natural Science), biofilm bacteria express different genes (and also have different phenotypic traits) compared to free - living bacteria, which leads to different antibiotic sensitivities. The key here is that the blank should be filled with a term related to the molecular or physiological differences, and "genes" is a very appropriate term as gene expression differences drive the differences in antibiotic sensitivity between biofilm and free - living bacteria.

Answer:

genes