When lactose is not present, what happens to E. coli is that the genes that produce the enzymes needed to break down lactose are not expressed. The correct answer is B.
Bogs are one of North America's most distinctive kinds of wetlands. They are characterized by spongy peat deposits, acidic waters and a floor covered by a thick carpet of sphagnum moss. Bogs receive all or most of their water from precipitation rather than from runoff, groundwater or streams
"<span>It would seem logical that periods of global warming in Earth’s history started the extinction pulses that defined the geological record. However, that’s not the case as a report that was published this week proves. The warming of Earth is accompanied by an increased biodiversity. That doesn’t mean that the mass extinction pulses won’t take place..."
Hope this helps!</span>
