The impact of the speeches has been routinely observed but seldom analysed. ... Oratory was the main instrument he used to maintain his shaky position in Parliament, to solidify ... So it is that Churchill has pre-created historical memory.
Answer: "pheromones" . ______________________________________________________ <u>Note</u>: "Odorless chemicals" that serve as "signals" to members of one's own species are called: <u> pheromones </u><u /> . _______________________________________________________