The study of Escherichia coli (E. coli) led researchers to new experimental designs for studying operons. Which experimental design did the scientists use? Used a microscope to observe cell division to determine the structure of operons. Tested the response of E. coli to a variety of chemicals to determine the number of operons that are present. Inserted the operons from one organism into another to determine the mechanism of operon expression. Read the genome sequence to determine the quantity and organization of operons.

the answer is c cumulus. cumulus clouds can be seen on a gray and rainy day, because cumulus clouds create thunderstorms. give me brainliest if right.

the wires in the toaster turning red and the toast crisping and turning brown

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.