Propose an explanation for why operons evolved in prokaryotes. what advantage do organisms have when they group genes together with a regulatory system?

Operons afford the organism the opportunity to simultaneously regulate transcription of multiple genes, whose products are active in the same process.  Operons lead to the synthesis of groups of functionally related enzymes, usually from a single mRNA transcript hence makes regulation of the genes highly efficient.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation: