Joe gave his wife cocaine (a schedule i drug) as a gift for her birthday. upon using the cocaine, joe's wife went into cardiac arrest and died. joe has never been arrested before. according to the anti drug abuse acts of 1986 and 1988,

maybe she shouldn't have snorted so much

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.

answer; i believe the correct answer is prefrontal cortex;