Answer:
Quorum sensing is triggered to begin when<u> a sufficient number of bacteria are present .</u>
Explanation:
Quorum sensing -
Quorum sensing is the ability to detect and to respond to the cell population density by the process of gene regulation . Quorum sensing bacteria releases some chemical signal molecules called the autoinducers , that increases the concentration as the function of the cell density .
The detection of the minimum threshold concentration of an autoinducer leads to the alteration in the gene expression .
The biggest drawback to building green is the up front cost.
So the answer to this question is illustrated in the third option, stating "the up front cost". With the expensive and luxurious price tags on these green products lead users and consumers to believe that they become impractical.
the Pacific, Atlantic, Indian, Southern, and Arctic.
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