ANSWER NOW PLEASE IM BEGGING YOU Will mark brainiest Forecasters and storm spotters have learned to recognize certain thunderstorm features and structure that make tornado formation
more likely. Some of these are visual cues, like the rear-flank downdraft, and others are particular patterns in radar images. One
particular clue used by storm spotters is the hook echo in a radar image that is often associated with a mesocyclone and indicates
favorable conditions for tornado formation. Can you spot the hook in the radar images below?

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?