The phenomenon of spontaneous recovery provides support for the idea that: Question 2 options: 1) it is easier to produce learned associations between natural stimuli than artificial stimuli. 2) extinction is permanent, according to classical conditioning theory. 3) stimulus generalization is a stronger, more easily produced response than stimulus discrimination. 4) a conditioned response that is extinguished is not unlearned or completely eliminated.

european feudalism was a combination of legal and military customs in medieval europe that flourished between the 9th and 15th centuries. broadly defined, it was a way of structuring society around relationships derived from the holding of land in exchange for service or labour.

japanese feudalism. the era of feudalism in japan took place from the 12th through 19th centuries. during that period local rulers, either powerful families or military warlords, dominated the land, while the emperor was merely a figurehead and not a significant political presence.

portugal is the westernmost country in europe.