Answer:
lactose, repressor, RNA polymerase (or mRNA might fit here), transcription, repressor, RNA polymerase
Explanation:
Hope this will help.
Cold water<span> has a higher density than warm </span>water<span>. </span>Water<span> gets colder with depth because cold, salty </span>ocean water<span> sinks to the bottom of the </span>ocean<span> basins below the less </span>dense<span> warmer </span>water<span> near the surface.</span>