Explain each unique functional relationship between the plasma membrane and the cytoplasm

Select the correct answer from each drop-down menu. the lac operon in e. coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .

Earth is tilted on its axis. which of these would not exist if earth had no tilt?

Which is a major genetically modified crop in the united states?